Risk Management - Schedule of Largest Notional Amounts of the Positions to Buy or Sell Foreign Currency (Details) - Foreign exchange contracts - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Notional amount of foreign currency derivatives	$ 1,100	$ 1,200
Buy | Euro
Derivative [Line Items]
Notional amount of foreign currency derivatives	164	177
Buy | British pound
Derivative [Line Items]
Notional amount of foreign currency derivatives	128	86
Buy | Norwegian krone
Derivative [Line Items]
Notional amount of foreign currency derivatives	28	32
Sell | Chinese renminbi
Derivative [Line Items]
Notional amount of foreign currency derivatives	89	90
Sell | Australian dollar
Derivative [Line Items]
Notional amount of foreign currency derivatives	$ 76	$ 88