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Financing Receivables (Details) - USD ($)
$ in Millions
Jun. 30, 2020
Dec. 31, 2019
Financing Receivable Recorded Investment [Line Items]    
Financing receivable $ 163 $ 109
Financing Receivable, before Allowance for Credit Loss 175  
Financing Receivable, Allowance for Credit Loss 12  
Argentina [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 44 64
Financing Receivable, before Allowance for Credit Loss 56  
Financing Receivable, Allowance for Credit Loss 12  
Chile [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 88 33
Financing Receivable, before Allowance for Credit Loss 88  
Financing Receivable, Allowance for Credit Loss 0  
Other Entity [Member]    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 13 12
Financing Receivable, before Allowance for Credit Loss 13  
Financing Receivable, Allowance for Credit Loss 0  
UNITED STATES    
Financing Receivable Recorded Investment [Line Items]    
Financing receivable 18 $ 0
Financing Receivable, before Allowance for Credit Loss 18  
Financing Receivable, Allowance for Credit Loss $ 0