v3.20.1

Variable Interest Entities and Unconsolidated Investments (Income from Unconsolidated Investments 10-Q) (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019	Nov. 20, 2019
(Income) from unconsolidated subsidiaries		$ 0	$ (6)
Greenfield
(Income) from unconsolidated subsidiaries		(1)	(2)
Whitby
(Income) from unconsolidated subsidiaries	[1]	0	(4)
Equity method investment, ownership interest sold				50.00%
Calpine Receivables
(Income) from unconsolidated subsidiaries		$ 1	$ 0
[1] (1)On November 20, 2019, we sold our 50% interest in Whitby to a third party.

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