v3.26.3
Debt and Credit Agreements - Narrative (Details) - USD ($)
1 Months Ended 3 Months Ended 9 Months Ended
Mar. 06, 2026
Mar. 17, 2025
Mar. 18, 2024
Aug. 31, 2026
Mar. 31, 2026
Sep. 30, 2026
Sep. 30, 2025
Sep. 30, 2026
Sep. 30, 2025
Jun. 29, 2026
Mar. 24, 2026
Dec. 31, 2025
Debt Instrument [Line Items]                        
Commercial paper and other short-term borrowings           $ 2,424,000,000   $ 2,424,000,000       $ 5,893,000,000
Short-term debt, weighted average interest rate, at point in time           3.85%   3.85%       3.68%
Outstanding borrowings           $ 14,169,000,000   $ 14,169,000,000       $ 28,678,000,000
Loss on debt extinguishment           0 $ 0 241,000,000 $ 0      
Debt restructuring costs           0 $ 0 (44,000,000) $ 0      
Notes 4.37% Due 2027                        
Debt Instrument [Line Items]                        
Repaid loan         $ 1,000,000,000.0              
Debt instrument, interest rate, stated percentage         4.37%              
One month term SOFR plus 0.875% term loan due 2027                        
Debt Instrument [Line Items]                        
Repaid loan       $ 1,500,000,000                
Outstanding borrowings       $ 2,750,000,000                
364-Day Credit Agreement | Line of Credit                        
Debt Instrument [Line Items]                        
Short-term debt, borrowing capacity   $ 3,000,000,000.0     $ 3,000,000,000.0         $ 2,000,000,000.0    
Debt term   364 days     364 days              
Short-term outstanding borrowings           0   0        
Senior Notes                        
Debt Instrument [Line Items]                        
Principal Amount                     $ 7,500,000,000  
Senior Notes | One month term SOFR plus 0.875% term loan due 2027                        
Debt Instrument [Line Items]                        
Senior notes           1,250,000,000   1,250,000,000       $ 2,750,000,000
Senior Notes | Aerospace Technologies                        
Debt Instrument [Line Items]                        
Principal Amount         $ 16,000,000,000.0              
Line of Credit | 5-Year Credit Agreement                        
Debt Instrument [Line Items]                        
Debt term 5 years   5 years                  
Line of credit facility, maximum borrowing capacity $ 4,000,000,000.0   $ 4,000,000,000.0             $ 3,000,000,000.0    
Long-term outstanding borrowings           $ 0   $ 0        
Line of Credit | 5-Year Credit Agreement | Spinoff                        
Debt Instrument [Line Items]                        
Line of credit facility, maximum borrowing capacity $ 3,500,000,000