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v3.20.1

REGULATORY ASSETS AND LIABILITIES (Tables) | 3 Months Ended
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Mar. 31, 2020
Regulatory Assets and Liabilities Disclosure [Abstract] |
Schedule of regulatory assets |
(in millions) |  | March 31, 2020 |  | December 31, 2019
Regulatory assets |  |  |  |
Pension and OPEB costs |  | $ | 1,042.5 |  |  | $ | 1,066.6 |
Plant retirements |  | 851.5 |  |  | 856.4 |
Environmental remediation costs |  | 686.4 |  |  | 685.5 |
Income tax related items |  | 457.6 |  |  | 457.8 |
Asset retirement obligations |  | 188.8 |  |  | 137.5 |
SSR |  | 140.5 |  |  | 151.5 |
Uncollectible expense |  | 83.4 |  |  | 52.2 |
Derivatives |  | 31.8 |  |  | 33.8 |
We Power generation |  | 18.7 |  |  | 25.8 |
Other, net |  | 77.6 |  |  | 60.5 |
Total regulatory assets |  | $ | 3,578.8 |  |  | $ | 3,527.6 |
Balance sheet presentation |  |  |  |
Other current assets |  | $ | 12.7 |  |  | $ | 20.9 |
Regulatory assets |  | 3,566.1 |  |  | 3,506.7 |
Total regulatory assets |  | $ | 3,578.8 |  |  | $ | 3,527.6 |
Schedule of regulatory liabilities |
(in millions) |  | March 31, 2020 |  | December 31, 2019
Regulatory liabilities |  |  |  |
Income tax related items |  | $ | 2,222.9 |  |  | $ | 2,248.8 |
Removal costs |  | 1,195.0 |  |  | 1,181.5 |
Pension and OPEB benefits |  | 349.5 |  |  | 354.9 |
Energy costs refundable through rate adjustments |  | 162.2 |  |  | 89.8 |
Electric transmission costs |  | 51.0 |  |  | 42.2 |
Earnings sharing mechanisms |  | 40.6 |  |  | 43.5 |
Uncollectible expense |  | 39.0 |  |  | 39.1 |
Energy efficiency programs |  | 35.6 |  |  | 30.7 |
Decoupling |  | 35.0 |  |  | 36.8 |
Other, net |  | 12.1 |  |  | 13.1 |
Total regulatory liabilities |  | $ | 4,142.9 |  |  | $ | 4,080.4 |
Balance sheet presentation |  |  |  |
Amounts refundable to customers |  | $ | 155.8 |  |  | $ | 87.6 |
Regulatory liabilities |  | 3,987.1 |  |  | 3,992.8 |
Total regulatory liabilities |  | $ | 4,142.9 |  |  | $ | 4,080.4 |

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- Definition Tabular disclosure of assets that are created when regulatory agencies permit public utilities to defer certain costs included in rate-setting to the balance sheet. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 715 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6501251&loc=d3e52485-110419 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 + Details
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- Definition Tabular disclosure of regulatory liabilities. Detailed information about liabilities that result from rate actions of a regulator. Rate actions of a regulator can impose a liability on a regulated enterprise resulting in a regulatory liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 405 -Section 25 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
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