Leasing - Schedule of Depreciation Expense on Operating Lease Assets (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Leases [Abstract]
Operating lease revenue	$ 352	$ 333	$ 703	$ 689
Depreciation expense on operating lease assets (excluding remarketing gains and losses)	216	214	437	452
Remarketing (gains) losses, net	0	(59)	19	(105)
Net depreciation expense on operating lease assets	216	155	456	347
Variable lease payments, excessive wear and tear	$ 6	$ 6	$ 12	$ 10