Equity (Common Stock - Narrative) (Details) (USD $)	9 Months Ended
	Sep. 30, 2014	Jun. 10, 2014
Equity [Abstract]
Stock Repurchase Program, Authorized Amount		$ 1,000,000,000
Treasury Stock, Shares, Acquired	8,168,318
Treasury Stock, Value, Acquired, Cost Method	443,000,000
Stock Repurchase Program, Remaining Authorized Repurchase Amount	$ 818,000,000