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Property, Plant, and Equipment - Balances (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Property, plant, and equipment |  |
Accumulated depreciation | $ 10,383.8 | $ 9,889.3
Net property, plant, and equipment | 29,113.8 | 26,982.4
OCPP generating units 5-8 | WE |  |
Property, plant, and equipment |  |
Net book value of plant to be retired | 812.5 |
Columbia generating unit 1 | WPS |  |
Property, plant, and equipment |  |
Net book value of plant to be retired | 84.0 |
Columbia generating unit 2 | WPS |  |
Property, plant, and equipment |  |
Net book value of plant to be retired | 189.1 |
Regulated operations |  |
Property, plant, and equipment |  |
Accumulated depreciation | 8,416.2 | 8,894.9
Net | 22,889.2 | 21,957.4
CWIP | 972.1 | 406.0
Net property, plant, and equipment | 23,861.3 | 22,363.4
Regulated operations | Electric - generation |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 5,480.5 | 6,981.4
Regulated operations | Electric - distribution |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 8,233.3 | 7,854.7
Regulated operations | Natural gas - distribution, storage, and transmission |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 14,203.3 | 13,526.6
Regulated operations | Property, plant, and equipment to be retired, net |  |
Property, plant, and equipment |  |
Property, plant, and equipment to be retired, net | 1,085.6 | 277.0
Regulated operations | Other |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 2,302.7 | 2,212.6
Non-regulated operations |  |
Property, plant, and equipment |  |
Accumulated depreciation | 1,082.3 | 994.4
Net | 5,170.9 | 4,589.2
CWIP | 81.6 | 29.8
Net property, plant, and equipment | 5,252.5 | 4,619.0
Non-regulated operations | Other |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 23.8 | 27.0
Non-regulated operations | We Power generation |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 3,237.1 | 3,240.5
Non-regulated operations | Renewable generation |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 2,537.1 | 1,837.5
Non-regulated operations | Natural gas storage |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 292.2 | 289.9
Non-regulated operations | Corporate services |  |
Property, plant, and equipment |  |
Property, plant, and equipment | 163.0 | 188.7
Non-Utility Energy Infrastructure | Non-regulated operations |  |
Property, plant, and equipment |  |
Property, plant, and equipment | $ 6,066.4 | $ 5,367.9

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