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Financial Instruments and Risk Concentration - Additional Information (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Carrying value of long term debt | $ 6,798 | $ 5,803 |
Revenue Benchmark | Customer Concentration Risk | Customer Number One |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Concentration risk | 10.00% | 8.00% | 8.00%
Allowance for Credit Loss |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Accounts receivable allowances, amounts charged (credited) to operating results | $ 3 | $ (11) | $ 11
Level 2 |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Fair value of long term debt | 7,780 |  |
Foreign Exchange Forward |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 416 |  |
Foreign Exchange Forward | Japanese Yen |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 147 |  |
Foreign Exchange Forward | Euros |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | 85 |  |
Foreign Exchange Forward | British Pounds |  |  |
Valuation and Qualifying Accounts Disclosure [Line Items] |  |  |
Notional amount | $ 82 |  |

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