v3.26.3
Segment and Revenue Information - Schedule of Depreciation and Amortization Expense by Segment (Details) - 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]        
Depreciation and amortization $ 584 $ 491 $ 1,753 $ 1,417
Operating Segments | Commercial Airplanes        
Segment Reporting [Line Items]        
Depreciation and amortization 198 111 565 323
Depreciation and amortization expense, business segment allocation 125 80 363 252
Operating Segments | Defense, Space & Security        
Segment Reporting [Line Items]        
Depreciation and amortization 68 56 184 159
Depreciation and amortization expense, business segment allocation 51 72 200 212
Operating Segments | Global Services        
Segment Reporting [Line Items]        
Depreciation and amortization 73 79 212 225
Depreciation and amortization expense, business segment allocation 17 21 56 60
Unallocated items, eliminations and other        
Segment Reporting [Line Items]        
Depreciation and amortization 245 245 792 710
Intersegment revenues eliminated on consolidation        
Segment Reporting [Line Items]        
Depreciation and amortization expense, business segment allocation $ 193 $ 173 $ 619 $ 524