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Property, Plant, and Equipment | 9 Months Ended
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Sep. 30, 2020
Property, Plant and Equipment [Abstract] |
Property, Plant and Equipment Disclosure | Property, Plant and EquipmentIn the second quarter of 2020, we received approval from MISO to retire the R.M. Schahfer Generating Station in 2023. As a result of this approval, we have reclassified $903.8 million in net book value of certain plant and equipment for the R.M. Schahfer Generating Station from “Net utility plant” to “Other Property, at cost, less accumulated depreciation” on the Condensed Consolidated Balance Sheets (unaudited). The amount of plant and equipment reclassified to other property is based on current estimates of the plant and equipment that will not be utilized at retirement. As more information about plant and equipment that can be utilized beyond 2023 becomes available, additional amounts may be reclassified to other property. Depreciation expense will continue to be recorded at the composite depreciation rate approved by the IURC. See Note 18-D, "Other Matters," for additional information.

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- Definition The entire disclosure for long-lived, physical asset used in normal conduct of business and not intended for resale. Includes, but is not limited to, work of art, historical treasure, and similar asset classified as collections. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 6 -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99893-112916 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -URI http://asc.fasb.org/topic&trid=2155823 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 7 -URI http://asc.fasb.org/extlink&oid=120429125&loc=SL120174063-112916 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 958 -SubTopic 360 -Section 50 -Paragraph 1 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=120429125&loc=d3e99779-112916 + Details
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