Geographic and Customer Concentrations - Revenue from Geographical Region (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 7,493	$ 7,952	$ 7,933
North America
Disaggregation of Revenue [Line Items]
Total operating revenue	6,256	6,365	6,411
Europe, Middle East and Africa
Disaggregation of Revenue [Line Items]
Total operating revenue	734	805	785
Latin America
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 503	$ 782	$ 737