v3.25.2
Segment Information Segment Other Significant Items Reconciliation (Table) (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2025
Jun. 30, 2024
Jun. 30, 2025
Jun. 30, 2024
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] $ 93 $ 90 $ 160 $ 162
Depreciation and amortization 83 80 162 160
Operating Segments        
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] 91 86 155 155
Depreciation and amortization 82 80 160 160
Segment Reporting, Reconciling Item, Corporate Nonsegment        
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] 2 4 5 7
Depreciation and amortization 1   2  
Ingalls | Operating Segments        
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] 16 13 30 24
Depreciation and amortization 20 19 40 38
Newport News | Operating Segments        
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] 74 70 123 126
Depreciation and amortization 36 33 69 67
Mission Technologies | Operating Segments        
Segment, Reconciliation of Other Items from Segments to Consolidated        
Capital Expenditures [1] 1 3 2 5
Depreciation and amortization $ 26 $ 28 $ 51 $ 55
[1] Net of grant proceeds for capital expenditures