Geographic Information Net Property by Country (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018		Dec. 31, 2017
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	$ 4,546	$ 4,544	[1]	$ 4,648
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	3,069	3,161		3,132
CANADA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	125	88		90
EMEA
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	566	546		570
Asia Pacific
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	178	181		215
Latin America
Revenues from External Customers and Long-Lived Assets [Line Items]
Net Property	$ 608	$ 568		$ 641

[1] Includes adjustments for discontinued operations and common control business combination.