Acquisitions Pro Forma (Details) (Digital Insight [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Digital Insight [Member]
Business Acquisition [Line Items]
Business Acquisition, Pro Forma Revenue	$ 1,647	$ 1,589	$ 4,831	$ 4,700
Business Acquisition, Pro Forma Net Income (Loss)	14	79	143	198
Business Acquisitions, Pro Forma Expenses, Elimination of Transactions Costs			8	6
Business Acquisition, Pro Forma Expenses, Incremental Amortization Changes Attributable to Acquiree		8		(7)
Business Acquisition, Pro Forma Expenses, Incremental Interest Charges Attributable to Acquiree		$ 13		$ 40