Debt - Schedule of Current Availability on Debt and Cash (Detail) - USD ($) $ in Thousands		Mar. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Credit facilities		$ 6,411,000
Outstanding letters of credit		28,000
Current availability		5,851,000
Cash and cash equivalents		671,117	$ 1,318,591
Total liquidity		6,522,000
Credit Facilities [Member]
Debt Instrument [Line Items]
Borrowings outstanding		532,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Borrowings outstanding	[1]	$ 0

[1] We are required to maintain available commitments under our credit facilities in an amount at least equal to the commercial paper borrowings outstanding.