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Segment Information-Acquisitions (Details)
$ in Millions
1 Months Ended 3 Months Ended
Feb. 23, 2019
USD ($)
Mar. 30, 2019
USD ($)
segment
Dec. 31, 2018
USD ($)
Segment Information      
Number of reportable segments | segment   6  
Purchase price allocation      
Goodwill   $ 166 $ 167
Intangible assets, net   66  
Noncontrolling interests   10 $ 11
Power barge | Minimum      
Segment Information      
Project cost   $ 160  
Ethanol plant | Pork      
Acquisition      
Asset purchase $ 40