Debt - Schedule of Credit Facility Activity and Current Availability on Debt and Cash (Detail) - USD ($)		12 Months Ended
		Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Weighted average daily interest rate		4.40%	4.30%	1.70%
Weighted average daily borrowings		$ 519,000,000	$ 411,000,000	$ 519,000,000
Maximum borrowings outstanding at any month-end		1,031,000,000	1,587,000,000	1,538,000,000
Credit facility maximum borrowing capacity		6,313,000,000	6,477,000,000	5,441,000,000
Outstanding letters of credit		25,000,000	24,000,000	38,000,000
Current availability		6,063,000,000	5,474,000,000	3,865,000,000
Cash and cash equivalents		1,318,591,000	530,388,000	278,000,000
Total liquidity		7,382,000,000	6,004,000,000	4,143,000,000
Credit Facilities [Member]
Debt Instrument [Line Items]
Borrowings outstanding		225,000,000	979,000,000	1,538,000,000
Commercial Paper [Member]
Debt Instrument [Line Items]
Borrowings outstanding	[1]	$ 0	$ 0	$ 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.