v3.25.0.1
Segment Information Segment Other Significant Items Reconciliation (Table) (Details) - USD ($)
$ in Millions
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] $ 353 $ 278 $ 272
Depreciation and amortization 326 347 358
Operating Segments [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] 346 272 271
Depreciation and amortization 324 346 357
Segment Reporting, Reconciling Item, Corporate Nonsegment      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] 7 6 1
Depreciation and amortization 2 1 1
Ingalls [Member] | Operating Segments [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] 60 65 69
Depreciation and amortization 78 76 79
Newport News Shipbuilding [Member] | Operating Segments [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] 268 196 182
Depreciation and amortization 136 150 148
Mission Technologies [Member] | Operating Segments [Member]      
Segment Reporting, Other Significant Reconciling Item [Line Items]      
Capital Expenditures [1] 18 11 20
Depreciation and amortization $ 110 $ 120 $ 130
[1] Net of grant proceeds for capital expenditures