|
Short-Term Borrowings (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
0 Months Ended | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
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Jun. 30, 2013
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Dec. 31, 2012
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Jun. 30, 2013
Letters Of Credit [Member]
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Dec. 31, 2012
Letters Of Credit [Member]
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May 15, 2012
Revolving Credit Facility [Member]
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Jun. 30, 2013
Revolving Credit Facility [Member]
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May 31, 2012
Revolving Credit Facility [Member]
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Jun. 30, 2013
Commercial Paper [Member]
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Jun. 30, 2013
Standby Letters of Credit [Member]
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Dec. 31, 2012
Standby Letters of Credit [Member]
|
Jun. 30, 2011
Previous Maximum [Member]
Commercial Paper [Member]
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Feb. 15, 2013
Current Maximum [Member]
Commercial Paper [Member]
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| Short-term Debt [Line Items] | ||||||||||||
| Commercial paper outstanding | $ 117.6 | $ 499.6 | $ 117.6 | |||||||||
| Revolving credit facility | 1,500.0 | 500.0 | 1,500.0 | |||||||||
| Revolving Credit Facility Expiration Date | May 15, 2017 | |||||||||||
| Line of Credit Facility, Amount Outstanding | 0 | 44.0 | 38.6 | 36.4 | 0 | 20.7 | 18.3 | |||||
| Accounts receivable securitization facility borrowings | 260.1 | 233.3 | ||||||||||
| Short-term borrowings | $ 377.7 | $ 776.9 | ||||||||||