Leases - Components of Equipment Leasing Income (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
Sales-type and direct financing leases
Interest income on lease receivable	$ 75	$ 119
Interest income related to accretion of unguaranteed residual asset	16	(3)
Total sales-type and direct financing lease income	91	116
Operating leases
Operating lease income related to lease payments	127	136
Other operating leasing gains	21	31
Total operating lease income and other leasing gains	148	167
Total lease income	$ 239	$ 283