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Segment Information - Assets (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Segment information    
Total assets $ 7,098 $ 6,858
North America    
Segment information    
Total assets 4,279 4,231
South America    
Segment information    
Total assets 862 818
Asia-Pacific    
Segment information    
Total assets 1,331 1,255
EMEA    
Segment information    
Total assets $ 626 $ 554