Leases Lease revenue (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Leases [Abstract]
Finance lease revenue	$ 105	$ 109	$ 209	$ 221
Operating lease revenue	275	271	550	549
Total	$ 380	$ 380	$ 759	$ 770
Financial Products
Lessor, Lease, Description
Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration]	Sales and revenues	Sales and revenues	Sales and revenues	Sales and revenues