Biggest changeIngalls Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Sales and service revenues $ 2,570 $ 2,528 $ 2,678 $ 42 2 % $ (150) (6) % Segment operating income 292 281 281 11 4 % — — % As a percentage of segment sales 11.4 % 11.1 % 10.5 % Sales and Service Revenues 2022 - Ingalls revenues, including intersegment sales, increased $42 million, or 2%, in 2022 compared to 2021, primarily driven by higher revenues in amphibious assault ships and surface combatants, partially offset by lower revenues in the Legend class NSC program.
Biggest changeWhere such items have occurred and the effects are material, a separate description is provided. 41 Net Cumulative Catch-up Revenue Adjustments For the years ended December 31, 2023, 2022, and 2021, favorable and unfavorable cumulative catch-up revenue adjustments were as follows: Year Ended December 31 ($ in millions) 2023 2022 2021 Gross favorable adjustments $ 309 $ 325 $ 244 Gross unfavorable adjustments (191) (212) (129) Net adjustments $ 118 $ 113 $ 115 For the years ended December 31, 2023, 2022, and 2021, net cumulative catch-up revenue adjustments by segment were as follows: Year Ended December 31 ($ in millions) 2023 2022 2021 Ingalls $ 91 $ 109 $ 103 Newport News 9 (13) 6 Mission Technologies 18 17 6 Net adjustments $ 118 $ 113 $ 115 Ingalls Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Sales and service revenues $ 2,752 $ 2,570 $ 2,528 $ 182 7 % $ 42 2 % Segment operating income 362 292 281 70 24 % 11 4 % As a percentage of segment sales 13.2 % 11.4 % 11.1 % Sales and Service Revenues Ingalls sales and service revenues, including intersegment sales, increased $182 million, or 7%, in 2023 compared to 2022, primarily driven by higher volumes in surface combatants and amphibious assault ships, partially offset by lower volumes in the NSC program.
We monitor our policies and procedures with respect to our contracts on a regular basis to ensure consistent application under similar terms and conditions, as well as compliance with all applicable government regulations. In addition, the DCAA routinely audits the costs we incur that are allocated to U.S. Government contracts.
We monitor our policies and procedures with respect to our contracts on a regular basis to ensure consistent application under similar terms and conditions, as well as compliance with all applicable government regulations. In addition, the DCAA routinely audits the costs we incur that are allocated to U.S.
Pension funding requirements under ERISA are subject to pension relief for plan sponsors in the form of higher interest rate assumptions introduced by the Moving Ahead for Progress in the 21st Century Act and subsequently extended by the American Rescue Plan Act of 2021.
Pension funding requirements for plan sponsors under ERISA are subject to pension relief in the form of higher interest rate assumptions introduced by the Moving Ahead for Progress in the 21st Century Act and subsequently extended by the American Rescue Plan Act of 2021.
Reinsurers under our property insurance have failed to acknowledge coverage for various losses related to COVID-19, and we filed a complaint in state court in Vermont seeking a judgment declaring that our business interruption and other losses associated with COVID-19 are covered by our property insurance program. We also initiated arbitration proceedings against other reinsurers seeking similar relief.
Reinsurers under our property insurance failed to acknowledge coverage for various losses related to COVID-19, and we filed a complaint in state court in Vermont seeking a judgment declaring that our business interruption and other losses associated with COVID-19 are covered by our property insurance program. We also initiated arbitration proceedings against other reinsurers seeking similar relief.
Performance refers to changes in contract profit margin rates. These changes typically relate to profit recognition associated with revisions to estimated costs at completion ("EAC") that reflect improved or deteriorated operating performance on that contract. Operating income changes are accounted for on a cumulative to date basis at the time an EAC change is recorded.
Performance refers to changes in contract profit margin rates. These changes typically relate to profit recognition associated with revisions to estimated costs at completion ("EAC"), which reflect improved or deteriorated operating performance on that contract. Operating income changes are accounted for on a cumulative to date basis at the time an EAC change is recorded.
Due to the differences in requirements and calculation methodologies between FAS and CAS, our FAS pension expense is not necessarily indicative of the funding requirements under PPA or the amounts we recover from the U.S. Government under CAS. 35 Assumption s - We account for our retirement related benefit plans on the accrual basis under FAS.
Due to the differences in requirements and calculation methodologies between FAS and CAS, our FAS pension expense is not necessarily indicative of the funding requirements under the PPA or the amounts we recover from the U.S. Government under CAS. Assumption s - We account for our retirement related benefit plans on the accrual basis under FAS.
We internally manage our operations by reference to "segment operating income," which is defined as operating income before the Operating FAS/CAS Adjustment and non-current state income taxes, neither of which affects segment performance. Segment operating income is not a recognized measure under GAAP.
We internally manage our operations by reference to "segment operating income," which is defined as operating income before the Operating FAS/CAS Adjustment and non-current state income taxes, neither of which affects contract performance. Segment operating income is not a recognized measure under GAAP.
Fixed-price incentive contracts effectively become firm fixed-price contracts once the cost-share limit is reached. 32 • Cost-Type Contracts - Cost-type contracts provide for reimbursement of the contractor's allowable costs plus a fee that represents profit.
Fixed-price incentive contracts effectively become firm fixed-price contracts once the cost-share limit is reached. • Cost-Type Contracts - Cost-type contracts provide for reimbursement of the contractor's allowable costs plus a fee that represents profit.
We expect our 2023 cash contributions to our qualified defined benefit pension plans to be less than $1 million, all of which we anticipate will be discretionary and which are exclusive of CAS cost recoveries under our contracts. Due to the differences in calculation methodologies, our FAS expense is not necessarily representative of our funding requirements or CAS cost recoveries.
We expect our 2024 cash contributions to our qualified defined benefit pension plans to be less than $1 million, all of which we anticipate will be discretionary and which are exclusive of CAS cost recoveries under our contracts. Due to the differences in calculation methodologies, our FAS expense is not necessarily representative of our funding requirements or CAS cost recoveries.
In funding our plans, we consider various factors, including the minimum funding requirements, the funded status needed to avoid potential benefit restrictions and other adverse consequences, minimum CAS funding requirements, and the current and anticipated funding levels of each plan. Effective January 1, 2021, we adopted the Safe Harbor methodology used in determining CAS pension costs.
In funding our plans, we consider various factors, including the minimum funding requirements, the funded status needed to avoid potential benefit restrictions and other adverse consequences, minimum CAS funding requirements, and the current and anticipated funding levels of each plan. Effective January 1, 2021, we adopted the Safe Harbor methodology for determining CAS pension costs.
The Vermont court dismissed our complaint, and we appealed the decision to the Vermont Supreme Court, which reversed and remanded the lower court’s decision in September 2022, allowing our claim to proceed. No assurance can be provided regarding the ultimate resolution of this matter. See Note 14: Investigations, Claims, and Litigation.
The Vermont court dismissed our complaint, and we appealed the decision to the Vermont Supreme Court, which reversed and remanded the lower court’s decision in September 2022, allowing our claim to proceed. No assurance can be provided regarding the ultimate resolution of this matter. See Note 14: Investigations, Claims, and Litigation. U.S.
The change in unrecognized prior service costs (credits) in 2022 resulted from plan amendments and the amortization of previously accumulated prior service costs (credits). Workers' Compensation Our operations are subject to federal and state workers' compensation laws. We maintain self-insured workers' compensation plans and participate in federally administered second injury workers' compensation funds.
The change in unrecognized prior service costs (credits) in 2023 resulted from plan amendments and the amortization of previously accumulated prior service costs (credits). Workers' Compensation Our operations are subject to federal and state workers' compensation laws. We maintain self-insured workers' compensation plans and participate in federally administered second injury workers' compensation funds.
Our contracts typically fall into one of four categories: firm fixed-price, fixed-price incentive, cost-type, and time and materials.
Government contracts. 33 Our contracts typically fall into one of four categories: firm fixed-price, fixed-price incentive, cost-type, and time and materials.
Net pre-tax unrecognized prior service costs (credits) as of December 31, 2022 and 2021 were $140 million and $60 million, respectively. These net deferred costs (credits) primarily originated from plan amendments, including those resulting from collective bargaining agreements.
Net pre-tax unrecognized prior service costs (credits) as of December 31, 2023 and 2022 were $125 million and $140 million, respectively. These net deferred costs (credits) primarily originated from plan amendments, including those resulting from collective bargaining agreements.
The San Antonio class (LPD 17) is the newest addition to the U.S. Navy's 21st century amphibious assault force, and these ships are a key element of the U.S. Navy's seabase transformation. In 2022, we delivered USS Fort Lauderdale (LPD 28), and we were awarded a long-lead-time material contract for LPD 32 (unnamed). We are currently constructing Richard M.
The San Antonio class (LPD 17) is the newest addition to the U.S. Navy's 21st century amphibious assault force, and these ships are a key element of the U.S. Navy's seabase transformation. In 2022, we delivered USS Fort Lauderdale (LPD 28), and we were awarded a long-lead-time material contract for Philadelphia (LPD 32).
Cash Flows We discuss below our significant operating, investing, and financing activities affecting cash flows for each of the three years in the period ended December 31, 2022, as classified in our consolidated statements of cash flows. 48 Operating Activities 2022 - Cash provided by operating activities was $766 million in 2022, compared to $760 million in 2021.
Cash Flows We discuss below our significant operating, investing, and financing activities affecting cash flows for each of the three years in the period ended December 31, 2023, as classified in our consolidated statements of cash flows. Operating Activities Cash provided by operating activities in 2023 was $970 million, compared to $766 million provided by operating activities in 2022.
As of December 31, 2022, $14 million in letters of credit were issued but undrawn and $360 million of surety bonds were outstanding. As of December 31, 2022, we had no other significant off-balance sheet arrangements. 51 GLOSSARY OF PROGRAMS Included below are brief descriptions of some of the programs discussed in this Annual Report on Form 10-K.
As of December 31, 2023, $12 million in letters of credit were issued but undrawn and $360 million of surety bonds were outstanding. As of December 31, 2023, we had no other significant off-balance sheet arrangements. 50 GLOSSARY OF PROGRAMS Included below are brief descriptions of some of the programs discussed in this Annual Report on Form 10-K.
The interest rates used to calculate pension liabilities under CAS are consistent with those used in the determination of minimum funding requirements under ERISA.
As a result, the interest rates used to calculate pension liabilities under CAS are consistent with those used in the determination of minimum funding requirements under ERISA.
Government contracts, our contract financial estimates reflect profit margin impact uncertainty, because such costs may not result in equitable adjustments, particularly on firm fixed-price and fixed-price incentive contracts, or may not be adequately covered by insurance.
Government contracts, our contract financial estimates reflect cost recovery uncertainty, because such costs may not result in equitable adjustments, particularly on firm fixed-price and fixed-price incentive contracts, or may not be adequately covered by insurance.
MSTS was awarded a contract for site management and operations at the Nevada National Security Site. SRNS provides site management and operations at the DoE’s Savannah River Site near Aiken, South Carolina.
MSTS was awarded a contract for site management and operations at the Nevada National Security Site. SRNS provides site management and operations at the DoE’s Savannah River Site near Aiken, South Carolina. Triad provides site management and operations at the DoE’s Los Alamos National Laboratory.
As disclosed in Note 17: Employee Pension and Other Postretirement Benefits in Item 8, net pre-tax unrecognized actuarial losses as of December 31, 2022 and 2021 were $678 million and $1,194 million, respectively.
As disclosed in Note 17: Employee Pension and Other Postretirement Benefits in Item 8, net pre-tax unrecognized actuarial losses as of December 31, 2023 and 2022 were $455 million and $678 million, respectively.
We use various financial measures to assist in capital deployment decision making, including net cash provided by operating activities and free cash flow. We believe these measures are useful to investors in assessing our financial performance.
We use various financial measures to inform our capital deployment strategy, including net cash provided by operating activities and free cash flow. We believe these measures are useful to investors in assessing our financial performance.
The discount rate assumption is determined for each plan by constructing a hypothetical portfolio of high-quality bonds with cash flows that match the estimated outflows for future benefit payments to determine a single equivalent discount rate.
Consequently, the discount rate can be volatile from year to year. The discount rate assumption is determined for each plan by constructing a hypothetical portfolio of high-quality bonds with cash flows that match the estimated outflows for future benefit payments to determine a single equivalent discount rate.
The contributions to our qualified defined benefit pension plans are affected by a number of factors, including published IRS interest rates, the actual return on plan assets, actuarial assumptions, and demographic experience. These factors and our resulting contributions also impact the funded status of the plans.
The contributions to our qualified defined benefit pension plans are affected by a number of factors, including published IRS interest rates, the actual return on plan assets, actuarial assumptions, and demographic experience.
In November 2019, our board of directors authorized an increase to our stock repurchase program from $2.2 billion to $3.2 billion and an extension of the term of the program to October 31, 2024. Repurchases are made from time to time at management's discretion in accordance with applicable federal securities laws.
In January 2024, our board of directors authorized an increase to our stock repurchase program from $3.2 billion to $3.8 billion and an extension of the term of the program to December 31, 2028. Repurchases are made from time to time at management's discretion in accordance with applicable federal securities laws.
Segment Operating Income 2022 - Mission Technologies segment operating income for the year ended December 31, 2022, was $63 million, compared to segment operating income of $50 million in 2021.
Segment Operating Income Mission Technologies segment operating income for the year ended December 31, 2023, was $101 million, compared to segment operating income of $63 million in 2022.
Virginia class (SSN 774) fast attack submarines Construct attack submarines as the principal subcontractor to Electric Boat. The Virginia class (SSN 774) is a post-Cold War design tailored to excel in a wide range of warfighting missions, including anti-submarine and surface ship warfare; special operation forces; strike; intelligence, surveillance, and reconnaissance; carrier and expeditionary strike group support; and mine warfare.
The Virginia class (SSN 774) is a post-Cold War design tailored to excel in a wide range of warfighting missions, including anti-submarine and surface ship warfare; special operation forces; strike; intelligence, surveillance, and reconnaissance; carrier and expeditionary strike group support; and mine warfare.
Program Name Program Description America class (LHA 6) amphibious assault ships Design and build large deck amphibious assault ships that provide forward presence and power projection as an integral part of joint, interagency and multinational maritime expeditionary forces.
Navy in May 2023. America class (LHA 6) amphibious assault ships Design and build large deck amphibious assault ships that provide forward presence and power projection as an integral part of joint, interagency and multinational maritime expeditionary forces.
We have been awarded contracts from Electric Boat for integrated product and process development, providing long–lead–time material and advance construction, and construction of the first two boats of the Columbia class (SSBN 826) submarine program. Construction of the first Columbia class (SSBN 826) submarine began in 2020. Fleet sustainment Maintains and modernizes a significant majority of the U.S.
We have been awarded contracts from Electric Boat for integrated product and process development, providing long–lead–time material and advance construction, and construction of the first two boats of the Columbia class (SSBN 826) submarine program. Construction of the first Columbia class (SSBN 826) submarine began in 2020.
We expect cash generated from operations in 2023, in combination with our current cash and cash equivalents, as well as existing borrowing facilities, to be sufficient to service debt and retiree benefit plans, meet contractual obligations, and fund capital expenditures for at least the next 12 calendar months beginning January 1, 2023 and beyond such 12-month period based on our current business plans. 2021 - Cash provided by operating activities was $760 million in 2021, compared to $1,093 million in 2020.
We expect cash generated from operations in 2024, in combination with our current cash and cash equivalents, as well as existing borrowing facilities, to be sufficient to service debt and retiree benefit plans, meet contractual obligations, and fund capital expenditures for at least the next 12 calendar months beginning January 1, 2024 and beyond such 12-month period based on our current business plans.
For further 37 information on workers’ compensation, see Environmental, Health & Safety in Item 1 and Note 16: Commitments and Contingencies in Item 8. Accounting Standards Updates See Note 3: Accounting Standards Updates in Item 8 for further information.
For further information on workers’ compensation, see Environmental, Health & Safety in Item 1 and Note 16: Commitments and Contingencies in Item 8.
In response, the United States and other countries imposed economic and trade sanctions, export controls, and other restrictions. This conflict and the associated sanctions have disrupted the global economy, causing heightened cybersecurity risks, supply chain challenges, higher energy costs, and an exacerbation of existing inflationary pressures.
In response, the U.S. and other countries imposed economic and trade sanctions, export controls, and other restrictions on Russia. This conflict and the associated sanctions have impacted the global economy, causing heightened cybersecurity risks and an exacerbation of supply chain challenges, higher energy costs, and inflationary pressures.
Management's Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the year ended December 31, 2021. Business Environment We continue to see uncertainty in the economy, our industry, and our company, with challenges for customers and suppliers, labor shortages, supply chain challenges, and inflation, among other impacts. U.S.
Management's Discussion and Analysis of Financial Condition and Results of Operations” of our Annual Report on Form 10-K for the year ended December 31, 2022. Business Environment We continue to see uncertainty, both domestically and globally, with challenges for customers and suppliers, labor shortages, supply chain challenges, and inflation, among other impacts.
Total backlog includes both funded backlog (firm orders for which funding is contractually obligated by the customer) and unfunded backlog (firm orders for which funding is not currently contractually obligated by the customer). Backlog excludes unexercised contract options and unfunded Indefinite Delivery/Indefinite Quantity orders.
Total backlog includes both funded backlog (firm orders for which funding is contractually obligated by the customer) and unfunded backlog (firm orders for which funding is not currently contractually obligated by the customer). Backlog excludes unexercised contract options and unfunded Indefinite Delivery/Indefinite Quantity orders. For contracts having no stated contract values, backlog includes only the amounts committed by the customer.
For the year ended December 31, 2022, we repurchased 244,561 shares at an aggregate cost of $52 million. For the years ended December 31, 2021 and 2020, we repurchased 544,440 and 390,904 shares, respectively, at aggregate costs of $101 million and $84 million, respectively.
For the year ended December 31, 2023, we repurchased 337,007 shares at an aggregate cost of $75 million. For the years ended December 31, 2022 and 2021, we repurchased 244,561 and 544,440 shares, respectively, at aggregate costs of $52 million and $101 million, respectively.
We perform design work as a subcontractor to Electric Boat, and we have entered into a teaming agreement with Electric Boat to build modules for the entire Columbia class (SSBN 826) submarine program that leverages our Virginia class (SSN 774) experience.
We have a teaming agreement with Electric Boat to build modules for the entire Columbia class (SSBN 826) submarine program that leverages our Virginia class (SSN 774) experience.
We may in the future incur additional costs and performance challenges, including as a result of higher prices, schedule delays, or the need to identify and develop alternative suppliers. 30 The COVID-19 pandemic has impacted our employees, customers, suppliers, and communities (collectively, “COVID-19 Events”). While costs related to COVID-19 Events are allowable under U.S.
We may in the future incur additional costs and performance challenges, including as a result of higher prices, schedule delays, or the need to identify and develop alternative suppliers. While costs related to COVID-19 events are allowable under U.S.
Other FAS and CAS Pension Considerations - A key driver of the difference between FAS expense and CAS cost (and consequently the FAS/CAS Adjustment) is the pattern of earnings and expense recognition for actuarial gains and losses that arise when our asset and liability experiences differ from our assumptions under each set of requirements.
A plan’s CAS pension cost can only be allocated until the plan is fully funded as defined under the CAS requirements. 36 Other FAS and CAS Pension Considerations - A key driver of the difference between FAS expense and CAS cost (and consequently the FAS/CAS Adjustment) is the pattern of earnings and expense recognition for actuarial gains and losses that arise when our asset and liability experiences differ from our assumptions under each set of requirements.
An increase or decrease of 25 basis points in the discount rate and the expected long-term rate of return assumptions would have had the following approximate impacts on pension expense and obligations: ($ in millions) Increase (Decrease) in 2023 Expense Increase (Decrease) in December 31, 2022 Obligations 25 basis point decrease in discount rate $ 16 $ 197 25 basis point increase in discount rate (6) (188) 25 basis point decrease in expected return on assets 17 25 basis point increase in expected return on assets (17) Assuming an 8.00% expected return on assets assumption, a $50 million pension plan contribution is generally expected to favorably impact the current year expected return on assets by approximately $2 million, depending on the timing of the contribution. 36 Sensitivities to assumptions are not necessarily linear and are specific to the time periods noted.
An increase or decrease of 25 basis points in the discount rate and the expected long-term rate of return assumptions would have had the following approximate impacts on pension expense and obligations: ($ in millions) Increase (Decrease) in 2024 Expense Increase (Decrease) in December 31, 2023 Obligations 25 basis point decrease in discount rate $ 7 $ 193 25 basis point increase in discount rate (6) (184) 25 basis point decrease in expected return on assets 17 25 basis point increase in expected return on assets (17) Assuming an 8.00% expected return on assets assumption, a $50 million pension plan contribution is generally expected to favorably impact the current year expected return on assets by approximately $2 million, depending on the timing of the contribution.
As of December 31, 2022, future scheduled periodic interest payments on our outstanding long-term debt, including commitment fees that we are obligated to pay on our Revolving Credit Facility, were approximately $437 million, with approximately $101 million expected to be paid in 2023 and $336 million thereafter.
As of December 31, 2023, future scheduled periodic interest payments on our outstanding long-term debt, including commitment fees that we are obligated to pay on our existing $1.5 billion Revolving Credit Facility, were approximately $333 million, with approximately $87 million expected to be paid in 2024 and $246 million thereafter.
The America class (LHA 6) ships, together with the Wasp class (LHD 1) ships, are the successors to the decommissioned Tarawa class (LHA 1) ships. The America class (LHA 6) ships optimize aviation operations and support capabilities.
The America class (LHA 6) ships, together with the Wasp class (LHD 1) ships, are the successors to the decommissioned Tarawa class (LHA 1) ships. The America class (LHA 6) ships optimize aviation operations and support capabilities. We are currently constructing Bougainville (LHA 8) and Fallujah (LHA 9).
Triad provides site management and operations at the DoE’s Los Alamos National Laboratory. 53 San Antonio class (LPD 17) amphibious transport dock ships Design and build amphibious transport dock ships, which are warships that embark, transport, and land elements of a landing force for a variety of expeditionary warfare missions, and also serve as the secondary aviation platform for Amphibious Readiness Groups.
San Antonio class (LPD 17) amphibious transport dock ships Design and build amphibious transport dock ships, which are warships that embark, transport, and land elements of a landing force for a variety of expeditionary warfare missions, and also serve as the secondary aviation platform for Amphibious Readiness Groups.
Geopolitical relationships have changed, and are continuing to change, and the U.S. and its allies face a global security environment that includes threats from state and non-state actors, including major global powers, as well as terrorist organizations, emerging nuclear tensions, diverse regional security concerns, and political instability.
Geopolitical relationships continue to change, and the U.S. and its allies face a global security environment that includes threats from state and non-state actors, including major global powers, as well as terrorist organizations, emerging nuclear tensions, diverse regional security concerns, and political instability. In February 2022, Russian forces invaded Ukraine, and the conflict is continuing.
The minimum funding requirements for our qualified pension plans are determined under the Employee Retirement Income Security Act of 1974 ("ERISA"), which is primarily based on the year's expected service cost and amortization of other previously unfunded liabilities. Effective January 1, 2011, we were subject to the funding requirements under the Pension Protection Act of 2006 ("PPA"), which amended ERISA.
The minimum funding requirements for our qualified pension plans are determined under the Employee Retirement Income Security Act of 1974 ("ERISA"), which is primarily based on the year's expected service cost and amortization of other previously unfunded liabilities.
Carrier RCOH Perform refueling and complex overhaul ("RCOH") of nuclear-powered aircraft carriers, which is required at the mid-point of their 50-year life cycle. USS George Washington (CVN 73) arrived at Newport News for the start of its RCOH in August 2017, and USS John C.
Program Name Program Description Aircraft carrier RCOH Perform refueling and complex overhaul ("RCOH") of nuclear-powered aircraft carriers, which is required at the mid-point of their 50-year life cycle. USS John C. Stennis (CVN 74) arrived at Newport News for the start of its RCOH in May 2021, and USS George Washington (CVN 73) was redelivered to the U.S.
These amounts are recorded within operating income. Current period state income tax expense is charged to contract costs and included in cost of sales and service revenues in segment operating income. 2022 - Non-current state income tax expense in 2022 was $2 million, compared to $13 million in 2021.
Current period state income tax expense is charged to contract costs and included in cost of sales and service revenues in segment operating income. Non-current state income tax benefit in 2023 was $11 million, compared to non-current state income tax expense of $2 million in 2022.
CONSOLIDATED OPERATING RESULTS The following table presents selected financial highlights: Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Sales and service revenues $ 10,676 $ 9,524 $ 9,361 $ 1,152 12 % $ 163 2 % Cost of product sales and service revenues 9,236 8,156 7,691 1,080 13 % 465 6 % Income from operating investments, net 48 41 32 7 17 % 9 28 % Other income and gains, net 1 2 1 (1) (50) % 1 100 % General and administrative expenses 924 898 904 26 3 % (6) (1) % Operating income 565 513 799 52 10 % (286) (36) % Interest expense (102) (89) (114) (13) (15) % 25 22 % Non-operating retirement benefit 276 181 119 95 52 % 62 52 % Other, net (20) 17 6 (37) (218) % 11 183 % Federal and foreign income taxes 140 78 114 62 79 % (36) (32) % Net earnings $ 579 $ 544 $ 696 $ 35 6 % $ (152) (22) % Operating Performance Assessment and Reporting We manage and assess the performance of our business based on our performance on individual contracts and programs using the financial measures referred to below, with consideration given to the Critical Accounting Policies, Estimates, and Judgments referred to in this section.
Accounting Standards Updates See Note 3: Accounting Standards Updates in Item 8 for further information. 37 CONSOLIDATED OPERATING RESULTS The following table presents selected financial highlights: Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Sales and service revenues $ 11,454 $ 10,676 $ 9,524 $ 778 7 % $ 1,152 12 % Cost of product sales and service revenues 9,808 9,236 8,156 572 6 % 1,080 13 % Income from operating investments, net 37 48 41 (11) (23) % 7 17 % Other income and gains, net 120 1 2 119 11,900 % (1) (50) % General and administrative expenses 1,022 924 898 98 11 % 26 3 % Operating income 781 565 513 216 38 % 52 10 % Interest expense (95) (102) (89) 7 7 % (13) (15) % Non-operating retirement benefit 148 276 181 (128) (46) % 95 52 % Other, net 19 (20) 17 39 195 % (37) (218) % Federal and foreign income taxes 172 140 78 32 23 % 62 79 % Net earnings $ 681 $ 579 $ 544 $ 102 18 % $ 35 6 % Operating Performance Assessment and Reporting We manage and assess the performance of our business based on our performance on individual contracts and programs using the financial measures referred to below, with consideration given to the Critical Accounting Policies, Estimates, and Judgments referred to in this section.
The Operating FAS/CAS Adjustment excludes the following components of net periodic benefit costs: interest cost, expected return on plan assets, amortization of prior service cost (credit) and actuarial loss (gain), and settlement and curtailment effects. Effective January 1, 2021, we adopted the Safe Harbor methodology for determining CAS pension costs.
The Operating FAS/CAS Adjustment excludes the following components of net periodic benefit costs: interest cost, expected return on plan assets, amortization of prior service cost (credit) and actuarial loss (gain), and settlement and curtailment effects.
The differences in asset returns resulted in an actuarial loss of $1,943 million, and the differences in discount rates resulted in an actuarial gain of $2,605 million for the year ended December 31, 2022.
The differences in asset returns resulted in an actuarial gain of $263 million, and the differences in discount rates resulted in an actuarial loss of $144 million for the year ended December 31, 2023.
We also use free cash flow as a key operating metric in assessing the performance of our business and as a key performance measure in evaluating management performance and determining incentive compensation.
We also use free cash flow as a key operating metric in assessing the performance of our business and as a key performance measure in evaluating management performance and determining incentive compensation. Free cash flow may not be comparable to similarly titled measures of other companies.
We expect the Operating FAS/CAS Adjustment in 2023 to be a net expense of approximately $68 million ($118 million FAS and $50 million CAS), primarily driven by the more immediate recognition of higher interest rates under FAS.
We expect the Operating FAS/CAS Adjustment in 2024 to be a net expense of approximately $63 million ($113 million FAS and $50 million CAS), primarily driven by lower interest rates under FAS.
The following table presents segment operating results: Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Sales and Service Revenues Ingalls $ 2,570 $ 2,528 $ 2,678 $ 42 2 % $ (150) (6) % Newport News 5,852 5,663 5,571 189 3 % 92 2 % Mission Technologies 2,387 1,476 1,268 911 62 % 208 16 % Intersegment eliminations (133) (143) (156) 10 7 % 13 8 % Sales and service revenues $ 10,676 $ 9,524 $ 9,361 $ 1,152 12 % $ 163 2 % Operating Income Ingalls $ 292 $ 281 $ 281 $ 11 4 % $ — — % Newport News 357 352 233 5 1 % 119 51 % Mission Technologies 63 50 41 13 26 % 9 22 % Segment operating income 712 683 555 29 4 % 128 23 % Non-segment factors affecting operating income Operating FAS/CAS Adjustment (145) (157) 248 12 8 % (405) (163) % Non-current state income taxes (2) (13) (4) 11 85 % (9) (225) % Operating income $ 565 $ 513 $ 799 $ 52 10 % $ (286) (36) % KEY SEGMENT FINANCIAL MEASURES Sales and Service Revenues Period-to-period revenues reflect performance under new and ongoing contracts.
The following table presents segment operating results: Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Sales and Service Revenues Ingalls $ 2,752 $ 2,570 $ 2,528 $ 182 7 % $ 42 2 % Newport News 6,133 5,852 5,663 281 5 % 189 3 % Mission Technologies 2,699 2,387 1,476 312 13 % 911 62 % Intersegment eliminations (130) (133) (143) 3 2 % 10 7 % Sales and service revenues $ 11,454 $ 10,676 $ 9,524 $ 778 7 % $ 1,152 12 % Operating Income Ingalls $ 362 $ 292 $ 281 $ 70 24 % $ 11 4 % Newport News 379 357 352 22 6 % 5 1 % Mission Technologies 101 63 50 38 60 % 13 26 % Segment operating income 842 712 683 130 18 % 29 4 % Non-segment factors affecting operating income Operating FAS/CAS Adjustment (72) (145) (157) 73 50 % 12 8 % Non-current state income taxes 11 (2) (13) 13 650 % 11 85 % Operating income $ 781 $ 565 $ 513 $ 216 38 % $ 52 10 % KEY SEGMENT FINANCIAL MEASURES Sales and Service Revenues Period-to-period revenues reflect performance under new and ongoing contracts.
We expect the FAS/CAS Adjustment in 2023 to be a net benefit of approximately $81 million (($31) million FAS and $50 million CAS), primarily driven by higher interest rates offset by 2022 asset returns.
The favorable change was primarily driven by higher interest rates under FAS. We expect the FAS/CAS Adjustment in 2024 to be a net benefit of approximately $115 million (($65) million FAS and $50 million CAS), primarily driven by the more immediate recognition of the 2023 asset returns, offset by lower interest rates under FAS.
The components of the Operating FAS/CAS Adjustment were as follows: Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent FAS benefit (expense) $ 86 $ (28) $ (70) $ 114 407 % $ 42 60 % CAS cost 45 52 437 (7) (13) % (385) (88) % FAS/CAS Adjustment 131 24 367 107 446 % (343) (93) % Non-operating retirement benefit (276) (181) (119) (95) (52) % (62) (52) % Operating FAS/CAS Adjustment (expense) benefit $ (145) $ (157) $ 248 $ 12 8 % $ (405) (163) % 2022 - The Operating FAS/CAS Adjustment in 2022 was a net expense of $145 million, compared to a net expense of $157 million in 2021.
The components of the Operating FAS/CAS Adjustment were as follows: Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent FAS benefit (expense) $ 30 $ 86 $ (28) $ (56) (65) % $ 114 407 % CAS cost 46 45 52 1 2 % (7) (13) % FAS/CAS Adjustment 76 131 24 (55) (42) % 107 446 % Non-operating retirement benefit (148) (276) (181) 128 46 % (95) (52) % Operating FAS/CAS Adjustment (expense) benefit $ (72) $ (145) $ (157) $ 73 50 % $ 12 8 % The Operating FAS/CAS Adjustment in 2023 was a net expense of $72 million, compared to a net expense of $145 million in 2022.
The following table summarizes key components of cash flow provided by operating activities: Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Net earnings $ 579 $ 544 $ 696 $ 35 6 % $ (152) (22) % Depreciation and amortization 366 301 254 65 22 % 47 19 % Provision for doubtful accounts (7) 7 (1) (14) (200) % 8 800 % Stock-based compensation 36 33 23 3 9 % 10 43 % Deferred income taxes 2 98 23 (96) (98) % 75 326 % Loss (gain) on investments in marketable securities 25 (19) (17) 44 232 % (2) (12) % Asset impairments — — 13 — — % (13) (100) % Retiree benefits (127) (78) (176) (49) (63) % 98 56 % Loss on early extinguishment of debt — — 21 — — % (21) (100) % Trade working capital decrease (increase) (108) (126) 257 18 14 % (383) (149) % Net cash provided by operating activities $ 766 $ 760 $ 1,093 $ 6 1 % $ (333) (30) % We have historically maintained a capital structure comprised of a mix of equity and debt financing.
The following table summarizes key components of cash flow provided by operating activities: Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Net earnings $ 681 $ 579 $ 544 $ 102 18 % $ 35 6 % Depreciation and amortization 355 366 301 (11) (3) % 65 22 % Provision for expected credit losses 6 (7) 7 13 186 % (14) (200) % Stock-based compensation 34 36 33 (2) (6) % 3 9 % Deferred income taxes (113) 2 98 (115) (5,750) % (96) (98) % Loss (gain) on investments in marketable securities (23) 25 (19) (48) (192) % 44 232 % Retiree benefits (75) (127) (78) 52 41 % (49) (63) % Trade working capital decrease (increase) 105 (108) (126) 213 197 % 18 14 % Net cash provided by operating activities $ 970 $ 766 $ 760 $ 204 27 % $ 6 1 % We have historically maintained a capital structure comprised of a mix of equity and debt financing.
Non-Operating Retirement Benefit The non-operating retirement benefit includes the following components of net periodic benefit costs: interest cost, expected return on plan assets, amortization of prior service cost (credit) and actuarial loss (gain), and settlement and curtailment effects. 2022 - A favorable change in the non-operating retirement benefit of $95 million from 2021 to 2022 was primarily driven by higher 2021 returns on plan assets. 2021 - A favorable change in the non-operating retirement benefit of $62 million from 2020 to 2021 was primarily driven by higher 2020 returns on plan assets.
The change was driven by an increase in capitalized interest costs on construction in progress. 45 Non-Operating Retirement Benefit The non-operating retirement benefit includes the following components of net periodic benefit costs: interest cost, expected return on plan assets, amortization of prior service cost (credit) and actuarial loss (gain), and settlement and curtailment effects.
In 2022, the actual return on assets was approximately (16.1)%, which was less than the expected return assumption of 7.25%. For the year ended December 31, 2022, the weighted average discount rates for our pension and other postretirement benefit plans increased by 247 and 256 basis points, respectively.
In 2023, the actual return on assets was approximately 12.3%, which was greater than the expected return assumption of 8.00%. For the year ended December 31, 2023, the weighted average discount rates for our pension and other postretirement benefit plans decreased by 19 and 15 basis points, respectively.
Our purchase obligations as of December 31, 2022, were approximately $4,525 million, with approximately $2,451 million expected to be paid in 2023 and $2,074 million thereafter.
Our purchase obligations as of December 31, 2023, were approximately $5,122 million, with approximately $2,702 million expected to be paid in 49 2024 and $2,420 million thereafter.
Newport News Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Sales and service revenues $ 5,852 $ 5,663 $ 5,571 $ 189 3 % $ 92 2 % Segment operating income 357 352 233 5 1 % 119 51 % As a percentage of segment sales 6.1 % 6.2 % 4.2 % Sales and Service Revenues 2022 - Newport News revenues, including intersegment sales, increased $189 million, or 3%, in 2022 compared to 2021, primarily driven by higher revenues in aircraft carriers and submarines, partially offset by lower revenues in naval nuclear support services.
Newport News Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Sales and service revenues $ 6,133 $ 5,852 $ 5,663 $ 281 5 % $ 189 3 % Segment operating income 379 357 352 22 6 % 5 1 % As a percentage of segment sales 6.2 % 6.1 % 6.2 % Sales and Service Revenues Newport News sales and service revenues, including intersegment sales, increased $281 million, or 5%, in 2023 compared to 2022, primarily driven by higher volumes in aircraft carrier construction and engineering, the Columbia 42 class (SSBN 826) submarine program, submarine services, and the Virginia class (SSN 774) submarine program, partially offset by lower volumes in aircraft carrier RCOH and naval nuclear support services.
In estimating contract costs, we utilize a profit-booking rate based upon performance expectations that incorporate a number of assumptions and estimates regarding risks related to technical requirements, feasibility, schedule, and contract costs. Management performs periodic reviews of the contracts to evaluate the underlying risks, which may increase the profit-booking rate as we are able to mitigate and retire such risks.
In estimating contract costs, we utilize a profit-booking rate based upon performance expectations that incorporate a number of assumptions and estimates regarding risks related to technical requirements, feasibility, schedule, and contract costs.
The decrease in actuarial losses in 2022 was primarily driven by lower benefit obligations of $2,605 million resulting from higher discount rates used to determine benefit obligations and amortization of previously unrecognized actuarial losses of $32 million, partially offset by asset returns less than expected returns of $1,943 million.
The decrease in actuarial losses in 2023 was primarily driven by asset returns greater than expected returns of $263 million, updated mortality assumptions of $118 million, and amortization of previously unrecognized actuarial losses of $2 million, offset by lower discount rates used to determine benefit obligations of $144 million.
This category also includes the class' non-recurring engineering. The class is expected to bring improved warfighting capability, quality of life improvements for sailors, and reduced life cycle costs. Legend class National Security Cutter Design and build the U.S. Coast Guard's National Security Cutters ("NSCs"), the largest and most technically advanced class of cutter in the U.S. Coast Guard.
In addition, we have received awards for detail design and construction of Enterprise (CVN 80) and Doris Miller (CVN 81). This category also includes the class' non-recurring engineering. The class is expected to bring improved warfighting capability, quality of life improvements for sailors, and reduced life cycle costs. 51 Legend class National Security Cutter Design and build the U.S.
For contracts having no stated contract values, backlog includes only the amounts committed by the customer. 47 The following table presents funded and unfunded backlog by segment as of December 31, 2022 and 2021: December 31, 2022 December 31, 2021 Total Total ($ in millions) Funded Unfunded Backlog Funded Unfunded Backlog Ingalls $ 9,231 $ 3,546 $ 12,777 $ 10,216 $ 792 $ 11,008 Newport News 11,665 17,742 29,407 11,121 21,198 32,319 Mission Technologies 1,317 3,622 4,939 1,334 3,789 5,123 Total backlog $ 22,213 $ 24,910 $ 47,123 $ 22,671 $ 25,779 $ 48,450 We expect approximately 22% of the $47.1 billion total backlog as of December 31, 2022, to be converted into sales in 2023.
The following table presents funded and unfunded backlog by segment as of December 31, 2023 and 2022: December 31, 2023 December 31, 2022 Total Total ($ in millions) Funded Unfunded Backlog Funded Unfunded Backlog Ingalls $ 12,546 $ 3,201 $ 15,747 $ 9,231 $ 3,546 $ 12,777 Newport News 11,890 15,349 27,239 11,665 17,742 29,407 Mission Technologies 1,545 3,590 5,135 1,317 3,622 4,939 Total backlog $ 25,981 $ 22,140 $ 48,121 $ 22,213 $ 24,910 $ 47,123 We expect approximately 22% of the $48.1 billion total backlog as of December 31, 2023, to be converted into sales in 2024.
General and Administrative Expenses In accordance with industry practice and the regulations that govern the cost accounting requirements for government contracts, most general and administrative expenses are considered allowable and allocable costs on government contracts.
General and Administrative Expenses In accordance with industry practice and the regulations that govern the cost accounting requirements for government contracts, most general and administrative expenses are considered allowable and allocable costs on government contracts. These costs are allocated to contracts in progress on a systematic basis, and contract performance factors include this cost component as an element of cost.
Product sales at our Ingalls segment increased $15 million in 2022, primarily as a result of higher volumes in amphibious assault ships and surface combatants, partially offset by lower volumes in the Legend class NSC program. Newport News product sales increased $278 million in 2022, primarily as a result of higher volumes in aircraft carriers and submarines.
Product Sales and Segment Cost of Product Sales Product sales in 2023 increased $381 million, or 5%, from 2022, primarily as a result of higher volumes at Newport News in aircraft carrier construction, the Columbia class (SSBN 826) submarine program, and the Virginia class (SSN 774) submarine program, and higher volumes at Ingalls in surface combatants and amphibious assault ships, partially offset by lower volumes at Newport News in aircraft carrier RCOH and lower volumes at Ingalls in the NSC program.
Political and Economic Environment – The global geopolitical and economic environment continues to be impacted by uncertainty, heightened tensions, and instability.
Global Geopolitical Environment – Our current operating environment exists in the broader context of political and socioeconomic priorities and continues to be impacted by uncertainty, heightened geopolitical tensions, and instability.
The board previously increased the quarterly cash dividend to $1.18 per share in November 2021 and $1.14 per share in November 2020. We paid cash dividends totaling $192 million ($4.78 per share), $186 million ($4.60 per share), and $172 million ($4.23 per share) in the years ended December 31, 2022, 2021, and 2020, respectively.
We paid cash dividends totaling $200 million ($5.02 per share), $192 million ($4.78 per share), and $186 million ($4.60 per share) in the years ended December 31, 2023, 2022, and 2021, respectively.
Naval nuclear support services Provide services to and in support of the U.S. Navy, ranging from services supporting the Navy's carrier and submarine fleets to maintenance services at U.S. Navy training facilities. Naval nuclear support services include design, construction, maintenance, and disposal activities for in-service U.S. Navy nuclear ships worldwide through mobile and in-house capabilities.
Naval nuclear support services include design, construction, maintenance, and disposal activities for in-service U.S. Navy nuclear ships worldwide through mobile and in-house capabilities. Services include maintenance services on nuclear reactor prototypes.
In June 2015, we were awarded a contract for the detail design and construction of John F. Kennedy (CVN 79), following several years of engineering, advance construction, and purchase of long-lead-time components and material. In addition, we have received awards for detail design and construction of Enterprise (CVN 80) and Doris Miller (CVN 81).
Ford (CVN 78), the first ship of the Ford class, was delivered to the U.S. Navy in the second quarter of 2017. In June 2015, we were awarded a contract for the detail design and construction of John F. Kennedy (CVN 79), following several years of engineering, advance construction, and purchase of long-lead-time components and material.
While we base estimates and assumptions on our knowledge of current events and actions we may undertake in the future, actual results may ultimately differ from these estimates and assumptions.
While we base estimates and assumptions on our knowledge of current events and actions we may undertake in the future, actual results may ultimately differ from these estimates and assumptions. We consider our policies relating to the following matters to involve our most critical accounting policies and estimates: • Revenue recognition; • Retirement related benefit plans; and • Workers' compensation.
Stennis (CVN 74), construction of a 10th boat of the Virginia class (SSN 774) submarine program, and construction of John F. Lehma n (DDG 137). LIQUIDITY AND CAPITAL RESOURCES We seek to efficiently convert operating results into cash for deployment in operating our businesses, implementing our business strategy, and maximizing stockholder value.
Kennedy (CVN 79), and an award modification for long-lead-time material for additional Block V boats of the Virginia class (SSN 774) submarine program. LIQUIDITY AND CAPITAL RESOURCES We seek to efficiently convert operating results into cash for deployment in operating our businesses, implementing our business strategy, and maximizing stockholder value.
Mission Technologies Year Ended December 31 2022 over 2021 2021 over 2020 ($ in millions) 2022 2021 2020 Dollars Percent Dollars Percent Sales and service revenues $ 2,387 $ 1,476 $ 1,268 $ 911 62 % $ 208 16 % Segment operating income (loss) 63 50 41 13 26 % 9 22 % As a percentage of segment sales 2.6 % 3.4 % 3.2 % Sales and Service Revenues 2022 - Mission Technologies revenues, including intersegment sales, for the year ended December 31, 2022, increased $911 million, or 62%, compared to 2021, primarily due to higher volumes in mission based solutions attributable to the acquisition of Alion in 2021. 2021 - Mission Technologies revenues, including intersegment sales, for the year ended December 31, 2021, increased $208 million, or 16%, compared to 2020, primarily due to higher volumes in mission based solutions from the acquisition of Alion, partially offset by the divestiture of our oil and gas business and contribution of our San Diego Shipyard to a joint venture.
Mission Technologies Year Ended December 31 2023 over 2022 2022 over 2021 ($ in millions) 2023 2022 2021 Dollars Percent Dollars Percent Sales and service revenues $ 2,699 $ 2,387 $ 1,476 $ 312 13 % $ 911 62 % Segment operating income 101 63 50 38 60 % 13 26 % As a percentage of segment sales 3.7 % 2.6 % 3.4 % Sales and Service Revenues Mission Technologies sales and service revenues, including intersegment sales, for the year ended December 31, 2023, increased $312 million, or 13%, compared to 2022, primarily due to higher volumes in C5ISR and CEW&S contracts.
The expected FAS/CAS Adjustment is subject to change during 2023, when we remeasure our actuarial estimate of the unfunded benefit obligation for CAS with updated census data and other items later in the year. 42 Non-current State Income Taxes Non-current state income taxes include deferred state income taxes, which reflect the change in deferred state tax assets and liabilities, and the tax expense or benefit associated with changes in state unrecognized tax benefits in the relevant period.
The expected FAS/CAS Adjustment is subject to change during 2024, when we remeasure our actuarial estimate of the unfunded benefit obligation with updated census data and other items later in the year.
Discount Rate - The assumed discount rate under FAS is used to determine the retirement related benefit plan obligations and expense, and represents the hypothetical rate at which plan benefit obligations could be effectively settled at the measurement date. Consequently, the discount rate can be volatile from year to year.
The key assumptions in these measurements are the interest rate used to discount future benefit payments and the expected long-term rate of return on plan assets. 35 Discount Rate - The assumed discount rate under FAS is used to determine the retirement related benefit plan obligations and expense, and represents the hypothetical rate at which plan benefit obligations could be effectively settled at the measurement date.
We made the following minimum and discretionary contributions to our pension and other postretirement benefit plans in the years ended December 31, 2022, 2021, and 2020: Year Ended December 31 ($ in millions) 2022 2021 2020 Pension plans Discretionary Qualified $ — $ 60 $ 205 Non-qualified 10 9 8 Other benefit plans 31 37 33 Total contributions $ 41 $ 106 $ 246 We made discretionary contributions to our qualified defined benefit pension plans totaling less than $1 million, $60 million, and $205 million in the years ended December 31, 2022, 2021, and 2020, respectively.
These factors and our resulting contributions also impact the funded status of the plans. 48 We made the following minimum and discretionary contributions to our pension and other postretirement benefit plans in the years ended December 31, 2023, 2022, and 2021: Year Ended December 31 ($ in millions) 2023 2022 2021 Pension plans Discretionary Qualified $ — $ — $ 60 Non-qualified 12 10 9 Other benefit plans 32 31 37 Total contributions $ 44 $ 41 $ 106 As of December 31, 2023 and 2022, our qualified pension plans were funded 114% and 109%, respectively.
Under the PPA, we are required to fully fund our pension plans over a rolling seven-year period as determined annually based upon the funded status at the beginning of each year. PPA also introduced a variety of benefit restrictions that apply if a plan falls below certain funded percentages, as defined by the Internal Revenue Code.
Under the PPA and the American Rescue Plan Act of 2021, we are required to fully fund our pension plans over a rolling 15-year period as determined annually based upon the funded status at the beginning of each year.
Services include maintenance services on nuclear reactor prototypes. Nuclear and environmental services Supports the national security mission of the Department of Energy ("DoE") through the management and operation of DoE sites, as well as the safe cleanup of legacy waste across the country.
Nuclear and environmental services Supports the national security mission of the Department of Energy ("DoE") through the management and operation of DoE sites, as well as the safe cleanup of legacy waste across the country. We meet our clients' toughest nuclear and environmental challenges and are positioned to serve the growing commercial nuclear power plant decommissioning market.
The increase was primarily due to favorable changes in contract estimates from facilities 46 capital and price adjustment clauses and contract incentives on the Columbia class (SSBN 826) submarine program, partially offset by lower risk retirement on the Virginia class (SSN 774) submarine program and the RCOH of USS George Washington (CVN 73). 2021 - Newport News segment operating income in 2021 was $352 million, compared to segment operating income of $233 million in 2020.
Segment Operating Income Newport News segment operating income in 2023 was $379 million, compared to segment operating income of $357 million in 2022. The increase was due to higher volumes described above and revenue adjustment on the RCOH of USS George Washington (CVN 73), partially offset by contract incentives on the Columbia class (SSBN 826) submarine program in 2022.
CAS Cost - In addition to providing the methodology for calculating retirement related benefit plan costs, CAS also prescribes the method for assigning those costs to specific periods. While the ultimate liability for such costs under FAS and CAS is similar, the pattern of cost recognition is different.
Sensitivities to assumptions are not necessarily linear and are specific to the time periods noted. CAS Cost - In addition to providing the methodology for calculating retirement related benefit plan costs, CAS also prescribes the method for assigning those costs to specific periods.
The favorable change in non-current state income taxes was primarily driven by a decrease in deferred state income tax expense, largely attributable to research and development expenses that are capitalized and amortized for tax purposes. 2021 - Non-current state income tax expense in 2021 was $13 million, compared to $4 million in 2020.
The favorable change in non-current state income taxes was primarily driven by a decrease in deferred state income tax expense, primarily attributable to the timing of long-term contract income for tax purposes.