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