Operating Information by Segment and Geographic Area - External Revenue and Total Assets by Geographic Area (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 3,122	$ 3,347
North America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	1,908	2,068
Asia Pacific (including Australia)
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	249	353
Europe
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	549	437
Central and South America
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	351	375
Middle East and Africa
Revenues from External Customers and Long-Lived Assets [Line Items]
Revenue	$ 65	$ 114