Segment Information - Assets (Details) - USD ($) $ in Millions	Mar. 31, 2021	Dec. 31, 2020
Segment information
Total assets	$ 6,803	$ 6,858
North America
Segment information
Total assets	4,240	4,231
South America
Segment information
Total assets	751	818
Asia-Pacific
Segment information
Total assets	1,257	1,255
EMEA
Segment information
Total assets	$ 555	$ 554