Revenues - Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Revenue	$ 1,064	$ 903	$ 2,002	$ 1,735
Middle East and North Africa [Member]
Disaggregation of Revenue [Line Items]
Revenue	350	289	660	556
North America [Member]
Disaggregation of Revenue [Line Items]
Revenue	268	220	506	434
Latin America [Member]
Disaggregation of Revenue [Line Items]
Revenue	265	205	492	381
Europe, Sub-Sahara Africa, Russia [Member]
Disaggregation of Revenue [Line Items]
Revenue	$ 181	$ 189	$ 344	$ 364