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Financing Arrangements and Derivative Financial Instruments Credit Arrangements - Narrative (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2014
Debt Instrument [Line Items]  
Credit Arrangements $ 9,321
Credit Arrangements, Unused Amount 2,236
Debt, Percentage Bearing Variable Interest, Percentage Rate 39.00%
Average Variable Interest Rate For All Variable Rate Credit Arrangements 5.47%
Long-term Debt
 
Debt Instrument [Line Items]  
Credit Arrangements 8,831
Credit Arrangements, Unused Amount 1,753
Short-term Debt
 
Debt Instrument [Line Items]  
Credit Arrangements 490
Credit Arrangements, Unused Amount $ 483