Debt, Interest Incurred (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Interest and Debt Expense, Net of Capitalized Interest
Interest and debt expense	$ 156	$ 162	$ 313	$ 326
Less: Capitalized interest	14	12	26	27
Interest and debt expense, net of capitalized interest	$ 142	$ 150	$ 287	$ 299