Servicing Activities (Tables)

3 Months Ended

Mar. 31, 2018

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 net investment in operating leases outstanding were as follows.

($ in millions)	March 31, 2018		December 31, 2017
On-balance sheet automotive finance loans and leases
Consumer automotive	$	68,738	$	67,631
Commercial automotive	36,935		37,058
Operating leases	8,489		8,682
Other	131		121
Off-balance sheet automotive finance loans
Securitizations	1,666		1,977
Whole-loan sales	1,175		1,409
Total serviced automotive finance loans and leases	$	117,134	$	116,878