v3.25.4
Fair Value Measurements - Schedule of Carrying Values and Fair Values of Short-Term and Long-term Debt (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Carrying Amount | Senior Notes | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt $ 74,575 $ 71,783
Carrying Amount | Senior Notes | Third Party (EUR-denominated) | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 5,551 2,058
Carrying Amount | Senior Notes | Related Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 1,498 1,497
Carrying Amount | Senior Secured Notes | Third Party | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 844 1,361
Carrying Amount | ABS Notes | Third Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 1,995 1,566
Carrying Amount | ECA Facility | Third Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 1,819 0
Fair Value | Senior Notes | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 70,517 65,631
Fair Value | Senior Notes | Third Party (EUR-denominated) | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 5,460 2,125
Fair Value | Senior Notes | Related Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 1,500 1,491
Fair Value | Senior Secured Notes | Third Party | Level 1    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 835 1,330
Fair Value | ABS Notes | Third Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt 2,017 1,570
Fair Value | ECA Facility | Third Party | Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt $ 1,876 $ 0