Finance Receivables (Details 2) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Receivables [Abstract]
Finance lease revenue (included in retail and wholesale finance revenue)	$ 119	$ 135	$ 244	$ 253