Statement of Cash Flows, Supplemental Disclosures (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Additional Cash Flow Elements and Supplemental Cash Flow Information [Abstract]
Income Taxes Paid, Net	$ 1	$ 3
Property, plant and equipment acquired with accounts payable and accrued liabilities	27	8
Property, Plant and Equipment, Other Increase (Decrease)	(2)	(2)
Right-of-Use Assets Obtained in Exchange for Operating and Finance Lease Liabilities	24	29
Cash paid for interest, net of amounts capitalized	$ 224	$ 234