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Property, Plant And Equipment (Tables) | 12 Months Ended
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Dec. 31, 2020
Property, Plant and Equipment [Abstract] |
Schedule Of Property, Plant And Equipment | Our property, plant and equipment on the Consolidated Balance Sheets are classified as follows:
At December 31, (in millions) | 2020 |  | 2019
Property, Plant and Equipment |  |  |
Gas Distribution Utility(1) | $ | 14,010.2 |  |  | $ | 14,989.7 |
Electric Utility(1) | 6,478.0 |  |  | 8,902.3 |
Corporate | 197.3 |  |  | 153.3 |
Construction Work in Process | 572.6 |  |  | 457.3 |
Renewable Generation Assets(2) | 175.7 |  |  | — |
Non-Utility and Other(3) | 2,746.1 |  |  | 39.3 |
Total Property, Plant and Equipment | $ | 24,179.9 |  |  | $ | 24,541.9 |
Accumulated Depreciation and Amortization |  |  |
Gas Distribution Utility(1) | $ | (3,292.9) |  |  | $ | (3,556.0) |
Electric Utility(1) | (2,305.0) |  |  | (3,973.8) |
Corporate | (109.3) |  |  | (79.5) |
Renewable Generation Assets(2) | (0.1) |  |  | — |
Non-Utility and Other(3) | (1,853.1) |  |  | (20.4) |
Total Accumulated Depreciation and Amortization | $ | (7,560.4) |  |  | $ | (7,629.7) |
Net Property, Plant and Equipment | $ | 16,619.5 |  |  | $ | 16,912.2 |
(1)NIPSCO’s common utility plant and associated accumulated depreciation and amortization are allocated between Gas Distribution Utility and Electric Utility Property, Plant and Equipment. (2)Our renewable generation assets are part of our electric segment and represent Non-Utility Property, owned and operated by Rosewater Wind Generation LLC, a joint venture between NIPSCO and unrelated tax equity partner, and depreciated straight-line over 30 years. Refer to Note 4, "Variable Interest Entities" for additional information. (3)Non-Utility and Other as of December 31, 2020 includes net book value of $903.8 million related to R.M. Schahfer Generating Station, which was reclassified from Electric Utility in the second quarter of 2020. Depreciation expense for the remaining net book value continues to be recorded at the composite depreciation rate approved by the IURC. See Note 20-E, "Other Matters," for additional information.
Schedule Of Depreciation Provisions For Utility Plant As A Percentage Of The Original Cost | The weighted average depreciation provisions for utility plant, as a percentage of the original cost, for the periods ended December 31, 2020, 2019 and 2018 were as follows:
| 2020 |  | 2019 |  | 2018
Electric Operations(1) | 3.4 | % |  | 2.8 | % |  | 2.9 | %
Gas Distribution Operations | 2.3 | % |  | 2.5 | % |  | 2.2 | %

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