Subsequent Events Subsequent Events (Details) (USD $)	3 Months Ended		9 Months Ended		0 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013	Oct. 31, 2014 Completed Acquisition [Member]	Oct. 01, 2014 Completed Acquisition [Member]	Oct. 01, 2014 Completed Acquisition [Member]	Oct. 13, 2014 Pending Acquisition [Member]
Subsequent Event [Line Items]
Transaction value of business acquired							$ 3,000,000,000
Payments to Acquire Businesses, Net of Cash Acquired			3,000,000	35,000,000	89,000,000	2,800,000,000
Transaction value of pending acquisition								170,000,000
Part Non-Cash Acquisition, Debt Assumed							200,000,000
Gain (Loss) on foreign exchange hedges	$ (102,000,000)	$ 26,000,000	$ (102,000,000)	$ (25,000,000)