Other Income, Net (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Other Income and Expenses [Abstract]
Equity income (loss) from investments in Trinidad	$ 18	$ (2)
Interest income	3	$ 12	$ 26
Adjustment to Deferred Compensation Expense	$ 13
Net Foreign Currency Transaction Gains (Losses)			$ 2