Landfill and Environmental Remediation Liabilities - Summary (Detail) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Landfill and Environmental Remediation Liabilities
Environmental Loss Contingency, Current, Statement of Financial Position [Extensible Enumeration]	Accrued Liabilities, Current	Accrued Liabilities, Current
Environmental Loss Contingency, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term	Long-term
Total, Environmental Remediation	$ 211
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Long-term, Accrued Liabilities, Current	Long-term, Accrued Liabilities, Current
Current (in accrued liabilities)	$ 174	$ 174
Long-term	2,912	2,888
Total	3,086	3,062
Landfill [Member]
Landfill and Environmental Remediation Liabilities
Current (in accrued liabilities), Landfill	142	143
Long-term, Landfill	2,733	2,710
Total, Landfill	2,875	2,853
Environmental Remediation Liabilities [Member]
Landfill and Environmental Remediation Liabilities
Current (in accrued liabilities), Environmental Remediation	32	31
Long-term, Environmental Remediation	179	178
Total, Environmental Remediation	$ 211	$ 209