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v3.19.1

Business Segments (Tables) | 3 Months Ended
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Mar. 31, 2019
Segment Reporting [Abstract] |
Business Segments [Table Text Block] |
| Three Months Ended
| March 31,
| 2019 | 2018
Millions |  |
Operating Revenue |  |
Regulated Operations |  |
Residential |  | $45.2 |  |  | $40.7 |
Commercial | 38.9 |  | 36.6 |
Municipal | 15.4 |  | 14.0 |
Industrial | 121.6 |  | 114.9 |
Other Power Suppliers | 39.4 |  | 43.7 |
Other | 21.7 |  | 20.3 |
Total Regulated Operations | 282.2 |  | 270.2 |
Energy Infrastructure and Related Services |  |
ALLETE Clean Energy |  |
Long-term PSA | 14.6 |  | 18.6 |
Other | 2.9 |  | 6.0 |
Total ALLETE Clean Energy | 17.5 |  | 24.6 |
U.S. Water Services (a) |  |
Point-in-Time | 19.0 |  | 22.3 |
Contract | 9.2 |  | 9.5 |
Capital Project | 5.2 |  | 6.4 |
Total U.S. Water Services | 33.4 |  | 38.2 |
Corporate and Other |  |
Long-term Contract | 20.2 |  | 20.0 |
Other | 3.9 |  | 5.2 |
Total Corporate and Other | 24.1 |  | 25.2 |
Total Operating Revenue |  | $357.2 |  |  | $358.2 |
Net Income (Loss) |  |
Regulated Operations |  | $51.5 |  |  | $43.9 |
Energy Infrastructure and Related Services |  |
ALLETE Clean Energy | 5.8 |  | 8.1 |
U.S. Water Services (a) | (1.1 | ) | (1.4 | )
Corporate and Other (a) | 14.3 |  | 0.4 |
Total Net Income |  | $70.5 |  |  | $51.0 |
(a) | On March 26, 2019, ALLETE completed the sale of U.S. Water Services. The Company recognized a gain on the sale of approximately $10 million after-tax reflected in Corporate and Other in 2019. (See Note 1. Operations and Significant Accounting Policies.)
NOTE 11. BUSINESS SEGMENTS (Continued)
| March 31, 2019 |  | December 31, 2018 |
Millions |  |
Assets |  |
Regulated Operations |  | $3,962.7 |  |  | $3,952.5 |
Energy Infrastructure and Related Services |  |
ALLETE Clean Energy | 643.8 |  | 606.6 |
U.S. Water Services (a) | — |  | 295.8 |
Corporate and Other | 612.3 |  | 310.1 |
Total Assets |  | $5,218.8 |  |  | $5,165.0 |
(a) On March 26, 2019, ALLETE completed the sale of U.S. Water Services. (See Note 1. Operations and Significant Accounting Policies.)

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- Definition Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 22 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8736-108599 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 25 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8813-108599 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 21 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8721-108599 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 30 -URI http://asc.fasb.org/extlink&oid=115929826&loc=d3e8906-108599 + Details
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