Supplemental Cash Flow Statement Disclosures (Details) - USD ($) $ in Millions	9 Months Ended		12 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Dec. 31, 2021	Dec. 31, 2020
Cash, Cash Equivalents and Restricted Cash
Cash and cash equivalents	$ 473	$ 1,446	$ 563	$ 1,366
Current restricted cash (included in other current assets)	$ 23	$ 12	$ 16	$ 15
Location of current restricted cash	Other current assets	Other current assets	Other current assets	Other current assets
Total cash, cash equivalents and restricted cash	$ 496	$ 1,458	$ 579	$ 1,381
Other Non-cash items
PP&E acquired but not yet paid	$ 461	$ 550	$ 540	$ 409