Other Financial Information - Schedule of Other Noncurrent Assets (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Other Financial Information [Abstract]
Prepaid gas transmission contract	$ 307	$ 297
Value added tax credits	282	336
Gas Supply Prepayment	259	283
Deferred mining costs, net	195	187
Prepaid pension benefit	160	125
Goodwill	144	146
Noncurrent prepaid tax asset	74	73
Noncurrent restricted cash	53	71
Intangibles, net	34	37
Other	135	95
Other assets, noncurrent, total	$ 1,643	$ 1,650