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Additional Working Capital Information (Narrative) (Details) (USD $)
In Billions, unless otherwise specified |
Dec. 31, 2011
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Dec. 31, 2010
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| Additional Working Capital Information [Abstract] | ||
| Unused credit lines for short-term financing | $ 5.5 | |
| Commercial paper programs under terms negotiated | $ 2.8 | |
| The weighted-average interest rate on short-term borrowings outstanding | 1.90% | 1.20% |
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- Definition
Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
Reflects the calculation as of the balance sheet date of the average interest rate weighted by the amount of short-term debt outstanding by type or by instrument at that time. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Details
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- Definition
Portion Of Unused Lines Of Credit Facility Remaining Borrowing Capacity Commercial Paper Programs Under Negotiated Terms No definition available.
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