Debt - Debt (Parenthetical) (Detail) - USD ($)	6 Months Ended	12 Months Ended
	Jun. 30, 2022	Dec. 31, 2021
Senior Notes, Interest at 3.60% Payable Semiannually, Principal Due on December 1, 2029 [Member]
Debt Instrument [Line Items]
Senior note face amount	$ 500,000,000	$ 500,000,000
Senior notes interest rate	3.60%	3.60%
Senior note due date	Dec. 01, 2029	Dec. 01, 2029
Senior Notes, Interest at 3.95% Payable Semiannually, Principal Due on December 1, 2042 [Member]
Debt Instrument [Line Items]
Senior note face amount	$ 1,100,000,000	$ 1,100,000,000
Senior notes interest rate	3.95%	3.95%
Senior note due date	Dec. 01, 2042	Dec. 01, 2042