Other Financial Information - Schedule of Other Noncurrent Assets (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Other Financial Information [Abstract]
Prepaid gas transmission contract	$ 296	$ 297
Value added tax credits	287	336
Gas Supply Prepayment	261	283
Deferred mining costs, net	186	187
Prepaid pension benefit	153	125
Goodwill	144	146
Noncurrent prepaid tax asset	72	73
Noncurrent restricted cash	53	71
Intangibles, net	35	37
Other	114	95
Other assets, noncurrent, total	$ 1,601	$ 1,650