Investments In and Advances To Affiliates (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended
	Feb. 28, 2023	Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022	Mar. 04, 2021
Investments in and Advances to Affiliates [Line Items]
Revenue		$ 3,239	$ 2,852
Operating loss		594	530
Gain (Loss) on Disposition of Business		0	1
Income (Loss) from Equity Method Investments		(4)	(33)
Contributions and loans to equity affiliates		20	$ 93
Shares Issued, Price Per Share			$ 25.83		$ 25.88
sPower OpCo B
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage	26.00%			50.00%
Minority Owned Affiliates [Member]
Investments in and Advances to Affiliates [Line Items]
Revenue		461	$ 302
Operating loss		(43)	(214)
Net Income (Loss), Including Portion Attributable to Nonredeemable Noncontrolling Interest		(62)	(254)
Net Income (Loss) attributable to affiliates		$ (60)	$ (238)
sPower OpCo B
Investments in and Advances to Affiliates [Line Items]
Equity Method Investment, Ownership Percentage Sold				49.00%
Proceeds from Sale of Equity Method Investments	$ 98
Equity Method Investment, Realized Gain (Loss) on Disposal (less than)	5
Equity Method Investment, Amount Sold	$ 196