v3.25.4
Fair Value Measurements - Recurring & Disclosure (Details) - USD ($)
$ in Millions
Dec. 31, 2025
Dec. 31, 2024
Carrying value [member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest rate swaps, assets [1] $ 7 $ 45
Carrying value [member] | Long-term Debt Excluding Finance Lease Liabilities and Other Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt [1],[2] 12,119 11,119
Level 1 [member] | Long-term Debt Excluding Finance Lease Liabilities and Other Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt [2] 8,922 7,560
Level 2 [member]    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Interest rate swaps, assets 7 45
Level 3 [member] | Long-term Debt Excluding Finance Lease Liabilities and Other Debt    
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]    
Long-term debt [2] $ 3,142 $ 3,140
[1] The fair values of cash equivalents and restricted cash equivalents approximate their carrying values due to their short-term maturities. The fair values of all other financial instruments not included in these tables are estimated to be equal to their carrying values.
[2] The carrying values and fair values exclude the deduction for unamortized deferred financing costs and any applicable discounts, as well as all finance lease liabilities; refer to Note 10: "Debt" for additional information.