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Subsequent Events (Detail) - USD ($) $ in Millions		1 Months Ended	6 Months Ended
Subsequent Events (Detail) - USD ($) $ in Millions	Jul. 15, 2024	Jul. 31, 2024	Jun. 30, 2024	Jun. 30, 2023
Subsequent Events
Net proceeds			$ 9,180	$ 11,356
Subsequent Event [Member]
Subsequent Events
Net proceeds		$ 1,500
Subsequent Event [Member] \| Senior Notes 4.950 Percent, Due 2027 [Member]
Subsequent Events
Debt instrument face amount		$ 750
Interest rate (as a percent)		4.95%
Subsequent Event [Member] \| Senior Notes 4.950 Percent, Due 2031 [Member]
Subsequent Events
Debt instrument face amount		$ 750
Interest rate (as a percent)		4.95%
Subsequent Event [Member] \| Winters Bros Waste Systems [Member]
Subsequent Events
Total consideration, net of cash acquired	$ 550