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Subsequent Events (Details) (USD $)
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0 Months Ended | ||
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Apr. 26, 2012
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Mar. 31, 2012
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Dec. 31, 2011
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| Subsequent Events [Abstract] | Ìý | Ìý | Ìý |
| Credit facility, amount | $ 1,750,000,000 | $ 5,434,500,000 | $ 5,447,000,000 |
| Revolving loan amount | $ 425,000,000 | Ìý | Ìý |
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- Definition
The stated principal amount of the debt instrument at time of issuance, which may vary from the carrying amount because of unamortized premium or discount. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition
The cash inflow from a contractual arrangement with the lender, including letter of credit, standby letter of credit and revolving credit arrangements, under which borrowings can be made up to a specific amount at any point in time with either short term or long term maturity that is collateralized (backed by pledge, mortgage or other lien in the entity's assets). Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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