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Fair Value Measurements - Assets and Liabilities Table (Details) - USD ($) $ in Millions | Mar. 31, 2016 | Dec. 31, 2015
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Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value, Net Asset (Liability) | $ (2) | $ (1)
Other Current Assets [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 48 | 50
Other Current Liabilities [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Liabilities, Fair Value Disclosure | (50) | (51)
Fair Value, Inputs, Level 1 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value, Net Asset (Liability) | (2) | (1)
Fair Value, Inputs, Level 1 [Member] | Other Current Assets [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 48 | 50
Fair Value, Inputs, Level 1 [Member] | Other Current Liabilities [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Liabilities, Fair Value Disclosure | (50) | (51)
Fair Value, Inputs, Level 2 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value, Net Asset (Liability) | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Other Current Assets [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Other Current Liabilities [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Liabilities, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 3 [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Fair Value, Net Asset (Liability) | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Other Current Assets [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Assets, Fair Value Disclosure | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Other Current Liabilities [Member] |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |
Other Liabilities, Fair Value Disclosure | $ 0 | $ 0

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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. + References No definition available. + Details
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