Short-Term Debt - Additional Information (Detail) - USD ($)							12 Months Ended
	Dec. 17, 2021	Jan. 29, 2021	Dec. 18, 2020	Oct. 30, 2020	Jul. 14, 2020	Feb. 06, 2020	Dec. 31, 2021	Dec. 31, 2020	May 25, 2021
Line Of Credit Facility [Line Items]
Commitment fees, percentage							0.125%
Weighted-average interest rate							0.58%	0.89%
Line of credit facility maximum borrowing capacity							$ 1,300,000,000	$ 1,250,000,000
Lenders commitment amount			$ 800,000,000
Increase of credit facility	$ 100,000,000		$ 100,000,000
Commercial Paper Program [Member]
Line Of Credit Facility [Line Items]
Debt instrument, restrictive covenants							The maturities of the Notes will vary, but may not exceed 270 days from the date of issue.
3-year Accounts Receivable Facility [Member]
Line Of Credit Facility [Line Items]
Credit facility amendment date				Oct. 30, 2020	Jul. 14, 2020
Line of credit facility maximum borrowing capacity				$ 150,000,000	$ 150,000,000		$ 0	$ 150,000,000
Credit facility maturity date							Mar. 22, 2021	Mar. 22, 2021
364-day Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Line of credit facility maximum borrowing capacity	$ 500,000,000					$ 300,000,000
Credit facility maturity period	364 days					364 days
Credit Facility extended maturity date		Apr. 29, 2021
Credit facility maturity date	Dec. 16, 2022					Mar. 23, 2021
Minimum [Member] | Amended And Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Debt instrument maturity date	Mar. 22, 2023		Mar. 22, 2022
Maximum [Member] | Amended And Restated Credit Agreement [Member]
Line Of Credit Facility [Line Items]
Debt instrument maturity date	Dec. 17, 2026		Mar. 22, 2023
Maximum [Member] | Commercial Paper Program [Member]
Line Of Credit Facility [Line Items]
Commercial paper issued							$ 800,000,000		$ 800,000,000