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Business Segment Information: Capital Expenditures and Asset Acquisitions (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting Information [Line Items]
Capital Expenditures	$ 608.5	$ 565.8
Corporate, Non-Segment
Segment Reporting Information [Line Items]
Capital Expenditures	6.9	10.8
Electric Utilities | Operating Segments
Segment Reporting Information [Line Items]
Capital Expenditures	334.0	246.8
Gas Utilities | Operating Segments
Segment Reporting Information [Line Items]
Capital Expenditures	$ 267.6	$ 308.2

X

- Definition

Amount of increase (decrease) of long-lived, 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, furniture and fixtures, and computer equipment.

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- Definition

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+ References

No definition available.

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- Details

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