Acquisitions Pro Forma (Details) (Digital Insight [Member], USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Digital Insight [Member]
Business Acquisition [Line Items]
Business Acquisitions, Pro Forma Expenses, Elimination of Transactions Costs			$ 8	$ 6
Business Acquisition, Pro Forma Revenue	1,658	1,619	3,184	3,112
Business Acquisition, Pro Forma Net Income (Loss)	89	72	129	118
Business Acquisition, Pro Forma Expenses, Incremental Amortization Changes Attributable to Acquiree	8		15
Business Acquisition, Pro Forma Expenses, Incremental Interest Charges Attributable to Acquiree	$ 13		$ 26