Income Taxes - Deferred Income Tax Assets And Liabilities (Detail) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Deferred income tax assets:
Net tax loss carryforwards	$ 1,853	$ 983
Long-term operating lease liabilities	840	807
Tax credits	119	405
Deferred interest expense	85	358
Accrued liabilities and deferred revenue	202	157
Depreciation and amortization	30	24
Provision for doubtful accounts	14	19
Other	26	28
Valuation allowance	(127)	(83)
Deferred income tax assets	3,042	2,698
Deferred income tax liabilities:
Operating lease right-of-use assets	826	793
Depreciation and amortization	62	74
Prepaid expenses	36	32
Other	13	13
Deferred income tax liabilities under vehicle programs, net	937	912
Deferred income tax assets, net	2,105	1,786
Tax loss carryforwards	123	80
Deferred tax assets	$ 4	$ 3