Fair Value Measurements Other Fair Value Measurements (Details) - USD ($) $ in Millions |
Jun. 30, 2015 |
Dec. 31, 2014 |
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| Other Fair Value Measurements [Line Items] | ||
| Carrying value of long-term debt and current portion of long-term debt | $ 8,612 | $ 9,032 |
| Level 2 [Member] | ||
| Other Fair Value Measurements [Line Items] | ||
| Fair value of long-term debt and current portion of long-term debt | $ 8,879 | $ 9,509 |
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- Definition Fair value portion of debt instrument payable, including, but not limited to, notes payable and loans payable. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. No definition available.
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- Definition Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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