Servicing Activities (Tables)

9 Months Ended

Sep. 30, 2017

Servicing Asset [Abstract]

Schedule Of Total Serviced Automobile Loans Outstanding [Table Text Block]

The current unpaid principal balance and any related unamortized deferred fees and costs of total serviced automotive finance loans and leases outstanding were as follows.

($ in millions)	September 30, 2017		December 31, 2016
On-balance sheet automotive finance loans and leases
Consumer automotive	$	66,721	$	65,646
Commercial automotive	36,005		38,853
Operating leases	8,853		11,311
Other	71		67
Off-balance sheet automotive finance loans
Securitizations	2,312		2,412
Whole-loan sales	1,668		3,191
Total serviced automotive finance loans and leases	$	115,630	$	121,480