v3.26.1
Liabilities, Commitments and Contingencies - Narrative (Details)
$ in Millions
3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
USD ($)
aircraft
lot
Jun. 30, 2025
USD ($)
vehicle
lot
aircraft
Sep. 30, 2018
USD ($)
aircraft
Jun. 30, 2026
USD ($)
aircraft
lot
Jun. 30, 2025
USD ($)
vehicle
lot
aircraft
Dec. 31, 2025
USD ($)
Dec. 31, 2018
USD ($)
aircraft
simulator
Dec. 31, 2011
lot
aircraft
tanker
Commitments And Contingencies [Line Items]                
Environmental loss contingency, operation and maintenance period, maximum       30 years        
Loss contingency, range of possible loss, portion not accrued $ 1,115     $ 1,115   $ 1,171    
Contingent liabilities on outstanding letters of credit agreements and surety bonds 3,479     3,479   3,295    
Supplier finance program, obligation 2,003     2,003   1,994    
(Decrease) to Earnings/Increase to (loss) from operations (350) $ (187)   (381) $ (338)      
Number of annual production lot | lot               13
Number of production lot | lot   10     10      
VC-25B                
Commitments And Contingencies [Line Items]                
Contract value $ 4,000     $ 4,000        
Number of commercial aircraft | aircraft 2     2        
(Decrease) to Earnings/Increase to (loss) from operations $ (280)         (60)    
KC-46A Tanker                
Commitments And Contingencies [Line Items]                
Contract value $ 33,000     $ 33,000        
(Decrease) to Earnings/Increase to (loss) from operations           (714)    
Number of generation aerial refueling tanker | tanker               4
Number of aircraft | aircraft 169     169       179
Number of low rate initial production lot | lot 12     12        
KC-46A Tanker | Capitalized Precontract Costs                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs $ 86     $ 86        
KC-46A Tanker | Potential Termination Liabilities                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs $ 194     $ 194        
MQ-25                
Commitments And Contingencies [Line Items]                
Contract value     $ 890          
(Decrease) to Earnings/Increase to (loss) from operations     $ (291)          
Number of aircraft | aircraft     7          
T-7A EMD                
Commitments And Contingencies [Line Items]                
Contract value             $ 860  
Number of aircraft | aircraft 5     5     5  
Number of simulator | simulator             7  
Number of test vehicle | vehicle   4     4      
T-7A Production                
Commitments And Contingencies [Line Items]                
(Decrease) to Earnings/Increase to (loss) from operations             $ (400)  
Number of aircraft | aircraft 14 342   14 342      
T-7A Production | Capitalized Precontract Costs                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs $ 267     $ 267        
T-7A Production | Potential Termination Liabilities                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs 865     865        
Commercial Crew | Capitalized Precontract Costs                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs 558     558        
Commercial Crew | Potential Termination Liabilities                
Commitments And Contingencies [Line Items]                
Capitalized precontract costs $ 19     $ 19        
Minimum | Supplier Finance Program, Majority of Amounts Payable                
Commitments And Contingencies [Line Items]                
Supplier finance program, payment timing, period 30 days     30 days        
Maximum | Supplier Finance Program, Majority of Amounts Payable                
Commitments And Contingencies [Line Items]                
Supplier finance program, payment timing, period 90 days     90 days        
Commercial Aircraft Commitments | Total Contractual Trade-In Commitment                
Commitments And Contingencies [Line Items]                
Other commitment $ 1,130     $ 1,130   1,267    
Commercial Aircraft Commitments | Net Amounts Payable to Customers Related to Probable Contractual Trade-In Commitments                
Commitments And Contingencies [Line Items]                
Other commitment 54     54   67    
Commercial Aircraft Commitments | Fair Value of Trade in Value of Aircraft                
Commitments And Contingencies [Line Items]                
Other commitment 52     52   61    
Financing Commitment                
Commitments And Contingencies [Line Items]                
Other commitment 16,836     16,836   $ 15,229    
Financing Commitment | External Credit Rating, Non Investment Grade                
Commitments And Contingencies [Line Items]                
Other commitment 11,698     11,698        
Joint Venture                
Commitments And Contingencies [Line Items]                
Other commitment $ 278     $ 278        
Other commitment, period 12 years     12 years