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Acquisitions and Divestitures - Intangible Allocation (Detail) - USD ($) $ in Millions	Oct. 30, 2020	Oct. 30, 2021	Dec. 31, 2019
Intangible assets
Other intangible assets			$ 53
Customer and Supplier Relationships [Member]
Intangible assets
Other intangible assets			38
Non-compete Covenant [Member]
Intangible assets
Other intangible assets			$ 15
Advanced Disposal [Member]
Intangible assets
Other intangible assets		$ 601
Advanced Disposal [Member] | Other Intangible Assets [Member]
Intangible assets
Other intangible assets		29
Weighted average amortization periods	7 years
Advanced Disposal [Member] | Customer Relationships [Member]
Intangible assets
Other intangible assets		$ 572
Weighted average amortization periods	15 years

X

- Definition

Weighted average amortization period of finite-lived intangible assets acquired either individually or as part of a group of assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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-SubTopic 30
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Amount of intangible assets, excluding goodwill, acquired at the acquisition date.

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