v3.26.3
Fair Value Measurements - Fair Values and Related Carrying Values of Financial Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notes receivable, net, carrying amount $ 13 $ 21
Notes receivable, net, fair value 13 21
Debt, excluding capital lease obligations, carrying amount (45,606) (53,848)
Debt, excluding capital lease obligations, fair value (42,567) (53,769)
Level 2    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notes receivable, net, fair value 13 13
Debt, excluding capital lease obligations, fair value $ (42,567) (53,769)
Level 3    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Notes receivable, net, fair value   $ 8