Acquisitions Acquisitions (Tables)

12 Months Ended

Dec. 31, 2017

Acquisitions [Abstract]

Schedule of Business Acquisitions, by Acquisition [Table Text Block]

The following table summarizes the allocation of cash consideration paid for TradeKing and the amounts of the identifiable assets acquired and liabilities assumed recognized at the acquisition date.

($ in millions)
Purchase price
Cash consideration	$	298
Allocation of purchase price to net assets acquired
Intangible assets (a)	82
Cash and short-term investments (b)	50
Other assets	14
Deferred tax asset, net	4
Employee compensation and benefits	(41		)
Other liabilities	(4		)
Goodwill	$	193

(a) We recorded $10 million and $6 million of amortization on these intangible assets during the years endedDecember 31, 2017, and 2016, respectively.

(b) Includes $40 million in cash proceeds from the acquisition transaction in order to pay employee compensation and benefits that vested upon acquisition as a result of the change in control.