Operating Lease Equipment - Additional Information (Details) - USD ($)	3 Months Ended		9 Months Ended
	Sep. 30, 2020	Sep. 30, 2019	Sep. 30, 2020	Sep. 30, 2019	Dec. 31, 2019
Leases [Abstract]
Operating lease equipment	$ 818,000,000		$ 818,000,000		$ 848,000,000
Operating lease income	39,000,000	$ 44,000,000	118,000,000	$ 110,000,000
Operating lease payments received			119,000,000	111,000,000
Impairment loss on operating lease	$ 0	$ 0	$ 3,000,000	$ 0