Discontinued Operations (Tables)

12 Months Ended

Dec. 31, 2017

Discontinued Operations and Disposal Groups [Abstract]

Disposal Groups, Including Discontinued Operations [Table Text Block]

Select financial information of discontinued operations is summarized below. The pretax income or loss includes direct costs to transact a sale.

Year ended December 31, ($ in millions)	2017			2016			2015
Select Automotive Finance operations
Pretax (loss) income (a)	$	(4	)	$	(2	)	$	452
Tax (benefit) expense (b)	(5		)	2			80
Other operations
Pretax income (loss)	$	2		$	(41	)	$	16
Tax benefit	—			(1		)	(4		)

(a) Includes certain treasury and other corporate activity recognized within Corporate and Other.

(b) Includes certain income tax activity recognized within Corporate and Other.