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Financial Instruments (Tables) | 12 Months Ended
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Dec. 31, 2017
Derivative Instruments and Hedging Activities Disclosure [Abstract] |
Schedule of a Summary of Foreign Exchange Contracts Gross Notional Values | The following is a summary of the primary hedging positions and corresponding fair values:
|  | December 31, 2018 |  | December 31, 2017
(in millions) |  | Gross Notional Value |  | Fair Value Asset (Liability)(1) |  | Gross Notional Value |  | Fair Value Asset (Liability)(1)
Currencies Hedged (Buy/Sell) |  |  |  |  |  |  |  |
Philippine Peso/U.S. Dollar |  | $ | 53 |  |  | $ | — |  |  | $ | 62 |  |  | $ | — |
Indian Rupee/U.S. Dollar |  | 69 |  |  | 2 |  |  | 68 |  |  | 1 |
Mexican Peso/U.S. Dollar |  | 8 |  |  | — |  |  | 9 |  |  | — |
All Other |  | 37 |  |  | — |  |  | 21 |  |  | — |
Total Foreign Exchange Hedging |  | $ | 167 |  |  | $ | 2 |  |  | $ | 160 |  |  | $ | 1 |
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(1) | Represents the net receivable (payable) amount included in the Consolidated Balance Sheet.

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- Definition Tabular disclosure of the notional amounts of outstanding derivative positions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
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