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Subsequent Events (Narrative) (Details) (USD $)
In Millions, except Per Share data, unless otherwise specified
 1 Months Ended 1 Months Ended
Nov. 03, 2014
Committed Receivables Sales Facility Program
Oct. 01, 2014
Committed Receivables Sales Facility Program
Oct. 31, 2014
Treasury Shares
Subsequent Event      
Treasury shares acquired (using Cost Method), Shares     3.1
Treasury shares acquired (using Cost Method), Value     $ 231
Treasury Stock Acquired, Average Cost Per Share     $ 74.12
Line of credit facility, effective date of increase Nov. 03, 2014    
Line of Credit Facility, Expiration Date Nov. 03, 2017    
Line of Credit Facility, Maximum Borrowing Capacity $ 950 $ 700