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Supplemental Disclosures to Consolidated Statements of Cash Flows (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
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Dec. 31, 2011
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Dec. 31, 2010
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Dec. 31, 2009
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| Supplemental Disclosures to Consolidated Statements of Cash Flows [Abstract] | |||
| Cash paid for interest | $ 12 | $ 66 | $ 140 |
| Cash paid (received) for income taxes | $ 193 | $ 161 | $ (44) |
| X | ||||||||||
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- Details
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| X | ||||||||||
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- Definition
The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
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- Definition
The amount of cash paid for interest during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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