Financial Statement Information Government Assistance (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended	12 Months Ended
	Sep. 30, 2020	Sep. 30, 2020	Dec. 31, 2021
Government Assistance [Line Items]
Government Assistance Amount	$ 12	$ 45
Deferred Tax Payments Liability CARES Act	33		$ 30
Selling, General and Administrative Expenses [Member]
Government Assistance [Line Items]
Government Assistance Amount	12	44
cost of goods and services sold [Member]
Government Assistance [Line Items]
Government Assistance Amount	$ 1	$ 1