Commitments and Contingencies - Additional Information (Detail) - PGS [Member] - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Long Term Commitments [Line Items]
Ultimate financial liability to superfund sites and former MGP sites	$ 13	$ 14
Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration]	Deferred Credits and Other Liabilities, Noncurrent	Deferred Credits and Other Liabilities, Noncurrent