Commitments and Contingencies (Detail) $ in Millions	3 Months Ended	9 Months Ended
	Dec. 31, 2022 USD ($)	Sep. 30, 2024 USD ($) site	Dec. 31, 2023 USD ($)
Commitments and Contingencies
Number of landfills adjacent to or near homeowners' properties with agreements guaranteeing market value | site		19
Increase environmental remediation liabilities		$ 17
Environmental remediation liabilities		$ 202
Number of sites listed on the EPA's NPL for which we have been notified we are a PRP | site		74
Number of owned sites listed on the EPA's NPL for which we have been notified we are a PRP | site		14
Number of non-owned sites listed on the EPA's NPL for which we have been notified we are a PRP | site		60
Dollar threshold for environmental matters requiring disclosure under item 103 of the SEC's Regulation S-K		$ 1
Workforce covered by collective bargaining (as a percent)		20.00%
Tax Year 2017 [Member]
Commitments and Contingencies
Income tax deposit paid	$ 103
San Jacinto Waste Pits [Member]
Commitments and Contingencies
Environmental remediation liabilities		$ 85	$ 85
Revolving Credit Facility [Member]
Commitments and Contingencies
Credit Facility, aggregate capacity		$ 3,500