Financing Receivables (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Financing Receivable Recorded Investment [Line Items]
Financing receivable	$ 113	$ 109
Financing Receivable, before Allowance for Credit Loss	126
Financing Receivable, Allowance for Credit Loss	13
Argentina [Member]
Financing Receivable Recorded Investment [Line Items]
Financing receivable	48	64
Financing Receivable, before Allowance for Credit Loss	61
Financing Receivable, Allowance for Credit Loss	13
Chile [Member]
Financing Receivable Recorded Investment [Line Items]
Financing receivable	39	33
Financing Receivable, before Allowance for Credit Loss	39
Financing Receivable, Allowance for Credit Loss	0
Other Entity [Member]
Financing Receivable Recorded Investment [Line Items]
Financing receivable	9	12
Financing Receivable, before Allowance for Credit Loss	9
Financing Receivable, Allowance for Credit Loss	0
UNITED STATES
Financing Receivable Recorded Investment [Line Items]
Financing receivable	17	$ 0
Financing Receivable, before Allowance for Credit Loss	17
Financing Receivable, Allowance for Credit Loss	$ 0