Other Operating Expenses

12 Months Ended

Dec. 31, 2017

Operating Expenses [Abstract]

Other Operating Income and Expense [Text Block]

Other Operating Expenses

Details of other operating expenses were as follows.

Year ended December 31, ($ in millions)	2017		2016		2015
Insurance commissions	$	415	$	389	$	378
Technology and communications	284		274		267
Lease and loan administration	159		136		126
Advertising and marketing	133		112		107
Professional services	113		103		93
Regulatory and licensing fees	113		94		79
Vehicle remarketing and repossession	110		95		78
Premises and equipment depreciation	89		84		82
Occupancy	46		51		50
Non-income taxes	21		25		29
Other	200		242		216
Total other operating expenses	$	1,683	$	1,605	$	1,505