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Acquisition of Advanced Disposal (Detail) $ / shares in Units, customer in Millions, $ in Billions	Oct. 30, 2020 USD ($) customer $ / shares	Nov. 30, 2020 USD ($)
364-day revolving credit facility [Member]
Business Acquisition [Line Items]
Maximum capacity	$ 3.0
Senior Notes, Aggregate [Member]
Business Acquisition [Line Items]
Debt instrument face amount		$ 2.5
Advanced Disposal [Member]
Business Acquisition [Line Items]
Price per share | $ / shares	$ 30.30
Total consideration	$ 4.6
Debt incurred for acquisition	$ 1.8
Number of customers | customer	3

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Amount of consideration transferred, consisting of acquisition-date fair value of assets transferred by the acquirer, liabilities incurred by the acquirer, and equity interest issued by the acquirer.

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Amount of liabilities incurred by the acquirer as part of consideration transferred in a business combination.

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