v3.26.3
Segment Information (Unaudited) Capital Expenditures and Depreciation and Amortization (Details 5) - USD ($)
$ in Millions
 3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Segment Reporting [Line Items]        
Capital Expenditures $ 306 $ 301 $ 775 $ 788
Depreciation and amortization 379 379 1,118 1,066
Aeronautics Systems [Member]        
Segment Reporting [Line Items]        
Capital Expenditures 106 102 175 250
Depreciation and amortization 97 92 274 273
Defense Systems [Member]        
Segment Reporting [Line Items]        
Capital Expenditures 33 21 77 44
Depreciation and amortization 44 47 132 132
Mission Systems [Member]        
Segment Reporting [Line Items]        
Capital Expenditures 46 66 133 152
Depreciation and amortization 73 71 212 206
Space Systems [Member]        
Segment Reporting [Line Items]        
Capital Expenditures 84 70 211 251
Depreciation and amortization 98 98 293 261
Corporate [Member]        
Segment Reporting [Line Items]        
Capital Expenditures 37 42 179 91
Depreciation and amortization $ 67 $ 71 $ 207 $ 194