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Statements Of Consolidated Equity (Parenthetical) - USD ($) $ in Millions		3 Months Ended				9 Months Ended
		Sep. 30, 2023		Sep. 30, 2022		Sep. 30, 2023	Sep. 30, 2022
Common Stock, Dividends, Per Share, Declared		$ 0.25		$ 0.24		$ 1.00	$ 0.94
Preferred Stock, Redemption Amount						$ 393.9
Preferred Stock Redemption Premium		$ 0.0		$ 0.0		(6.2)	$ 0.0
Distributions to noncontrolling interests		204.6				236.9
Preferred stock		(8.1)		(19.4)		(43.8)	(55.1)
Distributions to noncontrolling interests		(2.0)		(1.7)		(12.0)	(4.8)
Substantial Completion | Dunns Bridge I
Professional Fees		0.2
Substantial Completion | Indiana Crossroads Solar
Professional Fees		1.1				1.1
Mechanical Completion | Dunns Bridge I
Professional Fees						2.7
Noncontrolling Interest
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						0.0
Distributions to noncontrolling interests		204.6				236.9
Preferred stock		0.0		0.0		0.0	0.0
Distributions to noncontrolling interests		2.0		1.7		12.0	4.8
Common Stock
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						0.0
Distributions to noncontrolling interests		0.0				0.0
Preferred stock		0.0		0.0		0.0	0.0
Distributions to noncontrolling interests		0.0		0.0		0.0	0.0
Preferred Stock
Preferred Stock, Redemption Amount		(393.9)
Preferred Stock Redemption Premium		0.0
Distributions to noncontrolling interests	[1]	0.0
Preferred stock		0.0	[1]	0.0	[1]	0.0	0.0
Distributions to noncontrolling interests		0.0	[1]	0.0	[1]	0.0	0.0
Treasury Stock, Common
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						0.0
Distributions to noncontrolling interests		0.0				0.0
Preferred stock		0.0		0.0		0.0	0.0
Distributions to noncontrolling interests		0.0		0.0		0.0	0.0
Additional Paid-in Capital
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						0.0
Distributions to noncontrolling interests		0.0				0.0
Preferred stock		0.0		0.0		0.0	0.0
Distributions to noncontrolling interests		0.0		0.0		0.0	0.0
Retained Deficit
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						(6.2)
Distributions to noncontrolling interests		0.0				0.0
Preferred stock		(8.1)		(19.4)		(43.8)	(55.1)
Distributions to noncontrolling interests		0.0		0.0		0.0	0.0
Accumulated Other Comprehensive Income (Loss)
Preferred Stock, Redemption Amount						0.0
Preferred Stock Redemption Premium						0.0
Distributions to noncontrolling interests		0.0				0.0
Preferred stock		0.0		0.0		0.0	0.0
Distributions to noncontrolling interests		$ 0.0		$ 0.0		$ 0.0	$ 0.0
[1] (1) See Note 5, "Equity," for additional information.

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