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Segment Information | 12 Months Ended
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Dec. 31, 2021
Segment Reporting [Abstract] |
SEGMENT INFORMATION | SEGMENT INFORMATION We use net income attributed to common shareholders to measure segment profitability and to allocate resources to our businesses. At December 31, 2021, we reported six segments, which are described below. •The Wisconsin segment includes the electric and natural gas utility operations of WE, WPS, WG, and UMERC. •The Illinois segment includes the natural gas utility operations of PGL and NSG. •The other states segment includes the natural gas utility and non-utility operations of MERC and MGU. •The electric transmission segment includes our approximate 60% ownership interest in ATC, a for-profit, transmission-only company regulated by the FERC for cost of service and certain state regulatory commissions for routing and siting of transmission projects, and our approximate 75% ownership interest in ATC Holdco, which was formed to invest in transmission-related projects outside of ATC's traditional footprint. •The non-utility energy infrastructure segment includes: ◦We Power, which owns and leases generating facilities to WE, ◦Bluewater, which owns underground natural gas storage facilities in Michigan that provide approximately one-third of the current storage needs for our Wisconsin natural gas utilities, and ◦WECI, which holds our ownership interests in the following wind generating facilities: ▪90% ownership interest in Bishop Hill III, located in Henry County, Illinois, ▪80% ownership interest in Coyote Ridge, located in Brookings County, South Dakota, ▪90% ownership interest in Upstream, located in Antelope County, Nebraska, ▪90% ownership interest in Blooming Grove, located in McLean County, Illinois, ▪85% ownership interest in Tatanka Ridge, located in Deuel County, South Dakota, and ▪90% ownership interest in Jayhawk, located in Bourbon and Crawford counties, Kansas. See Note 2, Acquisitions, for more information on recent WECI acquisitions. •The corporate and other segment includes the operations of the WEC Energy Group holding company, the Integrys holding company, the PELLC holding company, Wispark, Wisvest, WECC, WBS, and also included the operations of PDL prior to the sale of its remaining solar facilities in the fourth quarter of 2020. See Note 3, Dispositions, for more information on the sale of these solar facilities. All of our operations and assets are located within the United States. The following tables show summarized financial information related to our reportable segments for the years ended December 31, 2021, 2020, and 2019.
|  | Utility Operations |  |  |  |  |  |  |  |  |  |
2021 (in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Electric Transmission |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
External revenues |  | $ | 6,037.0 |  |  | $ | 1,672.8 |  |  | $ | 519.0 |  |  | $ | 8,228.8 |  |  | $ | — |  |  | $ | 86.7 |  |  | $ | 0.5 |  |  | $ | — |  |  | $ | 8,316.0 |
Intersegment revenues |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 452.8 |  |  | — |  |  | (452.8) |  |  | — |
Other operation and maintenance |  | 1,455.2 |  |  | 433.5 |  |  | 90.4 |  |  | 1,979.1 |  |  | — |  |  | 43.1 |  |  | (7.5) |  |  | (9.2) |  |  | 2,005.5 |
Depreciation and amortization |  | 726.9 |  |  | 218.1 |  |  | 38.1 |  |  | 983.1 |  |  | — |  |  | 125.3 |  |  | 25.9 |  |  | (60.0) |  |  | 1,074.3 |
Equity in earnings of transmission affiliates |  | — |  |  | — |  |  | — |  |  | — |  |  | 158.1 |  |  | — |  |  | — |  |  | — |  |  | 158.1 |
Interest expense |  | 555.6 |  |  | 66.6 |  |  | 6.2 |  |  | 628.4 |  |  | 19.4 |  |  | 71.0 |  |  | 92.8 |  |  | (340.5) |  |  | 471.1 |
Loss on debt extinguishment |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 36.3 |  |  | — |  |  | 36.3 |
Income tax expense (benefit) |  | 119.9 |  |  | 79.3 |  |  | 11.5 |  |  | 210.7 |  |  | 32.3 |  |  | 3.1 |  |  | (45.8) |  |  | — |  |  | 200.3 |
Net income (loss) |  | 707.7 |  |  | 223.0 |  |  | 35.8 |  |  | 966.5 |  |  | 106.3 |  |  | 276.2 |  |  | (50.5) |  |  | — |  |  | 1,298.5 |
Net income (loss) attributed to common shareholders |  | 706.5 |  |  | 223.0 |  |  | 35.8 |  |  | 965.3 |  |  | 106.3 |  |  | 279.2 |  |  | (50.5) |  |  | — |  |  | 1,300.3 |
Capital expenditures and asset acquisitions |  | 1,389.7 |  |  | 533.7 |  |  | 95.9 |  |  | 2,019.3 |  |  | — |  |  | 335.3 |  |  | 18.1 |  |  | — |  |  | 2,372.7 |
Total assets (1) |  | 25,687.9 |  |  | 7,853.4 |  |  | 1,506.1 |  |  | 35,047.4 |  |  | 1,792.7 |  |  | 4,627.7 |  |  | 785.3 |  |  | (3,264.6) |  |  | 38,988.5 |
(1) Total assets at December 31, 2021 reflect an elimination of $1,729.9 million for all lease activity between We Power and WE.
|  | Utility Operations |  |  |  |  |  |  |  |  |  |
2020 (in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Electric Transmission |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
External revenues |  | $ | 5,473.5 |  |  | $ | 1,321.9 |  |  | $ | 384.1 |  |  | $ | 7,179.5 |  |  | $ | — |  |  | $ | 60.0 |  |  | $ | 2.2 |  |  | $ | — |  |  | $ | 7,241.7 |
Intersegment revenues |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 448.5 |  |  | — |  |  | (448.5) |  |  | — |
Other operation and maintenance |  | 1,476.7 |  |  | 435.4 |  |  | 87.0 |  |  | 1,999.1 |  |  | — |  |  | 24.9 |  |  | 17.4 |  |  | (9.2) |  |  | 2,032.2 |
Depreciation and amortization |  | 674.5 |  |  | 196.7 |  |  | 33.5 |  |  | 904.7 |  |  | — |  |  | 98.9 |  |  | 25.1 |  |  | (52.8) |  |  | 975.9 |
Equity in earnings of transmission affiliates |  | — |  |  | — |  |  | — |  |  | — |  |  | 175.8 |  |  | — |  |  | — |  |  | — |  |  | 175.8 |
Interest expense |  | 561.3 |  |  | 63.5 |  |  | 10.2 |  |  | 635.0 |  |  | 19.4 |  |  | 60.8 |  |  | 124.0 |  |  | (345.5) |  |  | 493.7 |
Loss on debt extinguishment |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 38.4 |  |  | — |  |  | 38.4 |
Income tax expense (benefit) |  | 132.7 |  |  | 66.1 |  |  | 13.1 |  |  | 211.9 |  |  | 43.7 |  |  | 44.7 |  |  | (72.4) |  |  | — |  |  | 227.9 |
Net income (loss) |  | 691.6 |  |  | 203.5 |  |  | 39.0 |  |  | 934.1 |  |  | 112.6 |  |  | 261.1 |  |  | (106.4) |  |  | — |  |  | 1,201.4 |
Net income (loss) attributed to common shareholders |  | 690.4 |  |  | 203.5 |  |  | 39.0 |  |  | 932.9 |  |  | 112.6 |  |  | 260.8 |  |  | (106.4) |  |  | — |  |  | 1,199.9 |
Capital expenditures and asset acquisitions |  | 1,382.4 |  |  | 652.7 |  |  | 144.3 |  |  | 2,179.4 |  |  | — |  |  | 661.8 |  |  | 33.1 |  |  | — |  |  | 2,874.3 |
Total assets (1) |  | 24,599.2 |  |  | 7,471.8 |  |  | 1,336.2 |  |  | 33,407.2 |  |  | 1,764.7 |  |  | 4,455.2 |  |  | 762.2 |  |  | (3,361.2) |  |  | 37,028.1 |
(1) Total assets at December 31, 2020 reflect an elimination of $1,824.5 million for all lease activity between We Power and WE.
|  | Utility Operations |  |  |  |  |  |  |  |  |  |
2019 (in millions) |  | Wisconsin |  | Illinois |  | Other States |  | Total Utility Operations |  | Electric Transmission |  | Non-Utility Energy Infrastructure |  | Corporate and Other |  | Reconciling Eliminations |  | WEC Energy Group Consolidated
External revenues |  | $ | 5,647.1 |  |  | $ | 1,357.1 |  |  | $ | 426.0 |  |  | $ | 7,430.2 |  |  | $ | — |  |  | $ | 88.5 |  |  | $ | 4.4 |  |  | $ | — |  |  | $ | 7,523.1 |
Intersegment revenues |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | 407.4 |  |  | — |  |  | (407.4) |  |  | — |
Other operation and maintenance |  | 1,591.3 |  |  | 461.1 |  |  | 98.5 |  |  | 2,150.9 |  |  | — |  |  | 19.7 |  |  | 14.0 |  |  | 0.2 |  |  | 2,184.8 |
Depreciation and amortization |  | 617.0 |  |  | 181.3 |  |  | 27.5 |  |  | 825.8 |  |  | — |  |  | 92.0 |  |  | 24.3 |  |  | (15.8) |  |  | 926.3 |
Equity in earnings of transmission affiliates |  | — |  |  | — |  |  | — |  |  | — |  |  | 127.6 |  |  | — |  |  | — |  |  | — |  |  | 127.6 |
Interest expense |  | 572.0 |  |  | 59.0 |  |  | 8.5 |  |  | 639.5 |  |  | 13.1 |  |  | 62.1 |  |  | 140.9 |  |  | (354.1) |  |  | 501.5 |
Income tax expense (benefit) |  | 35.2 |  |  | 60.2 |  |  | 13.6 |  |  | 109.0 |  |  | 27.1 |  |  | 59.9 |  |  | (71.0) |  |  | — |  |  | 125.0 |
Net income (loss) |  | 651.1 |  |  | 170.3 |  |  | 43.2 |  |  | 864.6 |  |  | 87.4 |  |  | 245.5 |  |  | (62.8) |  |  | — |  |  | 1,134.7 |
Net income (loss) attributed to common shareholders |  | 649.9 |  |  | 170.3 |  |  | 43.2 |  |  | 863.4 |  |  | 87.4 |  |  | 246.0 |  |  | (62.8) |  |  | — |  |  | 1,134.0 |
Capital expenditures and asset acquisitions |  | 1,378.6 |  |  | 624.9 |  |  | 109.1 |  |  | 2,112.6 |  |  | — |  |  | 389.9 |  |  | 26.5 |  |  | — |  |  | 2,529.0 |
Total assets (1) |  | 23,934.8 |  |  | 6,932.5 |  |  | 1,237.8 |  |  | 32,105.1 |  |  | 1,723.1 |  |  | 3,654.1 |  |  | 814.0 |  |  | (3,344.5) |  |  | 34,951.8 |
(1) Total assets at December 31, 2019 reflect an elimination of $1,896.7 million for all lease activity between We Power and WE.

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- Definition The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 31 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 34 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 40 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 26 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 41 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 32 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 42 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -URI http://asc.fasb.org/topic&trid=2134510 + Details
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