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Financial Instruments and Risk Concentration - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Carrying value of long term debt | $ 5,803 | $ 5,068 |
Allowance for Credit Loss |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Accounts receivable allowances, amounts charged (credited) to operating results | (11) | $ 11 | $ (9)
Level 2 |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Fair value of long term debt | 6,290 |  |
Foreign Exchange Forward |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 458 |  |
Foreign Exchange Forward | Japanese Yen |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 136 |  |
Foreign Exchange Forward | Indian Rupees |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 106 |  |
Foreign Exchange Forward | British Pounds |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | $ 74 |  |

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