Amount of other assets expected to be realized or consumed before one year or the normal operating cycle, if longer, acquired at the acquisition date.

Name:	us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsOther
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount due from customers or clients for goods or services, including trade receivables, that have been delivered or sold in the normal course of business, and amounts due from others, including related parties expected to be converted to cash, sold or exchanged within one year or the normal operating cycle, if longer, acquired at the acquisition date.

Acquisition of Advanced Disposal - Purchase Allocation (Detail) - USD ($) $ in Millions	Sep. 30, 2021	Dec. 31, 2020	Oct. 30, 2020
Purchase price allocation
Goodwill	$ 9,006	$ 8,994
Carrying value of debt	13,047	$ 13,810
Advanced Disposal [Member]
Purchase price allocation
Accounts and other receivables	160
Parts and supplies	7
Other current assets	16
Assets held for sale	1,022
Property and equipment	1,268
Goodwill	2,495
Other intangible assets	601
Investments in unconsolidated entities	9
Other assets	25
Accounts payable	(107)
Accrued liabilities	(158)
Deferred revenues	(19)
Current portion of long-term debt	(12)
Liabilities held for sale	(234)
Long-term debt, less current portion	(441)
Landfill and environmental remediation liabilities	(255)
Deferred income taxes	(214)
Other liabilities	(81)
Total purchase price	$ 4,082
Advanced Disposal [Member] \| Advanced Disposal 5.625% senior notes due 2024 [Member]
Purchase price allocation
Carrying value of debt			$ 425
Interest rate (as a percent)			5.625%
Fair value of debt			$ 438
Advanced Disposal [Member] \| Previously Reported [Member]
Purchase price allocation
Accounts and other receivables			159
Parts and supplies			8
Other current assets			17
Assets held for sale			1,022
Property and equipment			1,278
Goodwill			2,470
Other intangible assets			604
Investments in unconsolidated entities			9
Other assets			27
Accounts payable			(107)
Accrued liabilities			(155)
Deferred revenues			(19)
Current portion of long-term debt			(12)
Liabilities held for sale			(234)
Long-term debt, less current portion			(441)
Landfill and environmental remediation liabilities			(242)
Deferred income taxes			(223)
Other liabilities			(79)
Total purchase price			4,082
Advanced Disposal [Member] \| Adjustment [Member]
Purchase price allocation
Accounts and other receivables			1
Parts and supplies			(1)
Other current assets			(1)
Property and equipment			(10)
Goodwill			25
Other intangible assets			(3)
Other assets			(2)
Accrued liabilities			(3)
Landfill and environmental remediation liabilities			(13)
Deferred income taxes			9
Other liabilities			$ (2)