Other Income and Expense (Other Expense) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Schedule of other operating expense [Line Items]
Sales-type and Direct Financing Leases, Profit (Loss)	$ 36	[1]	$ 0		$ 0
Allowance for other receivables	0		7		0
Loss On Sale And Disposal Of Assets	22	[2]	30	[2]	28
Water Rights Write-Off	0		0		19
Other	5		11		10
Defined Benefit Plan, Other Cost (Credit)	17		10		1
Other Expenses	$ 80		$ 58		$ 58

[1] Related to losses recognized at commencement of sales-type leases at Distributed Energy. See Note 14—Leases for further information.

[2] Associated with a loss due to damage from a lightning incident at the Andres facility in the Dominican Republic in September 2018 and a loss associated with upgrading the tunnel lining at Changuinola in 2019.