Revenues, Unbilled Revenue and Deferred Revenue (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Contracts with Customers, Assets and Liabilities [Abstract]
Unbilled revenue	$ 113	$ 15
Deferred revenue	445	$ 446
Prepaid and other current assets [Member]
Contracts with Customers, Assets and Liabilities [Abstract]
Unbilled revenue (current amount)	113
Other current liabilities [Member]
Contracts with Customers, Assets and Liabilities [Abstract]
Deferred revenue (current amount)	172
Other long-term liabilities [Member]
Contracts with Customers, Assets and Liabilities [Abstract]
Deferred revenue (noncurrent)	$ 273