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Financing Receivables (Details) - USD ($)
$ in Millions
Jun. 30, 2017
Dec. 31, 2016
Financing Receivable Recorded Investment [Line Items]    
Financing receivable $ 279 $ 264
Argentina [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 241 236
UNITED STATES    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 19 20
Brazil [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 8 8
Other Entity [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable $ 11 $ 0