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Fair Value Measurements Fair Value Tables (Details) - USD ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016
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Predecessor [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative Asset | [1] |  | $ 182
Derivative Liability | [1] |  | 121
Predecessor [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Long-term Debt, Fair Value |  |  | 8,460
Predecessor [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents | [2] |  | 2,713
Marketable Securities |  |  | 1,362
Assets at Fair Value |  |  | 4,257
Long-term Debt, Fair Value | [3] |  | 8,464
Liabilities at Fair Value |  |  | 8,585
Predecessor [Member] | Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative Asset | [4] |  | 182
Derivative Liability | [4] |  | $ 121
Successor [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative Asset |  | $ 46 |
Derivative Liability |  | 79 |
Successor [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Long-term Debt, Fair Value |  | 10,250 |
Successor [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Cash Equivalents | [5] | 5,205 |
Marketable Securities |  | 952 |
Assets at Fair Value |  | 6,203 |
Long-term Debt, Fair Value | [6] | 11,560 |
Liabilities at Fair Value |  | 11,639 |
Successor [Member] | Foreign Exchange Contract [Member] | Fair Value, Measurements, Recurring [Member] | Fair Value, Inputs, Level 2 [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Derivative Asset | [7] | 46 |
Derivative Liability | [7] | $ 79 |
[1] | The company's derivative assets and liabilities subject to enforceable master netting arrangements totaled $114 million at December 31, 2016.
[2] | Time deposits included in "Cash and cash equivalents" and money market funds included in "Other current assets" in the consolidated balance sheets are held at amortized cost, which approximates fair value.
[3] | See Note 13 for information on fair value measurements of long-term debt.
[4] | See Note 18 for the classification of derivatives in the consolidated balance sheets.
[5] | Time deposits included in "Cash and cash equivalents" and money market funds included in "Other current assets" in the consolidated balance sheets are held at amortized cost, which approximates fair value.
[6] | See Note 13 for information on fair value measurements of long-term debt.
[7] | See Note 18 for the classification of derivatives in the consolidated balance sheets.

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- Definition Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258 + Details
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- Definition Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. + References No definition available. + Details
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