Property, Plant And Equipment (Schedule Of Property, Plant And Equipment) (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	$ 27,551.3	$ 25,171.3
Accumulated Depreciation and Amortization	(7,708.7)	(7,289.5)
Net Property, Plant and Equipment	19,842.6	17,881.8
Gas Distribution Utility
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	16,576.4	15,240.6
Accumulated Depreciation and Amortization	(3,678.1)	(3,490.2)
Electric Utility
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	7,162.4	6,754.9
Accumulated Depreciation and Amortization	(2,557.4)	(2,433.1)
Common Utility
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	271.7	217.8
Accumulated Depreciation and Amortization	(160.0)	(132.2)
Construction Work In Process
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	1,398.2	808.0
Renewable Generation Assets
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	702.2	702.4
Accumulated Depreciation and Amortization	(29.7)	(6.5)
Non-Utility And Other
Property, Plant and Equipment [Line Items]
Property Plant and Equipment	1,440.4	1,447.6
Accumulated Depreciation and Amortization	$ (1,283.5)	$ (1,227.5)

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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