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REGULATORY ACCOUNTING (Tables) | 9 Months Ended
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Sep. 30, 2021
Regulated Operations [Abstract] |
Components of Regulatory Assets | The components of regulatory assets were as follows:
| As of September 30, 2021 |  | As of December 31, 2020
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Benefit Costs | $ | 2,566.1 |  |  | $ | 540.2 |  |  | $ | 638.4 |  |  | $ | 249.7 |  |  | $ | 2,794.2 |  |  | $ | 632.3 |  |  | $ | 690.0 |  |  | $ | 267.6 |
Income Taxes, Net | 756.4 |  |  | 458.1 |  |  | 113.8 |  |  | 18.7 |  |  | 747.1 |  |  | 458.9 |  |  | 110.4 |  |  | 15.2 |
Securitized Stranded Costs | 489.7 |  |  | — |  |  | — |  |  | 489.7 |  |  | 522.1 |  |  | — |  |  | — |  |  | 522.1 |
Storm Restoration Costs, Net | 944.2 |  |  | 674.2 |  |  | 198.1 |  |  | 71.9 |  |  | 765.6 |  |  | 515.1 |  |  | 186.4 |  |  | 64.1 |
Regulatory Tracker Mechanisms | 883.0 |  |  | 304.6 |  |  | 320.0 |  |  | 76.8 |  |  | 850.5 |  |  | 246.6 |  |  | 332.2 |  |  | 95.3 |
Derivative Liabilities | 265.3 |  |  | 265.3 |  |  | — |  |  | — |  |  | 296.3 |  |  | 293.1 |  |  | — |  |  | — |
Goodwill-related | 302.0 |  |  | — |  |  | 259.3 |  |  | — |  |  | 314.7 |  |  | — |  |  | 270.2 |  |  | — |
Asset Retirement Obligations | 121.6 |  |  | 33.7 |  |  | 57.8 |  |  | 4.0 |  |  | 118.4 |  |  | 32.1 |  |  | 58.6 |  |  | 3.9 |
Other Regulatory Assets | 146.9 |  |  | 31.0 |  |  | 48.7 |  |  | 16.9 |  |  | 161.0 |  |  | 33.7 |  |  | 56.1 |  |  | 20.9 |
Total Regulatory Assets | 6,475.2 |  |  | 2,307.1 |  |  | 1,636.1 |  |  | 927.7 |  |  | 6,569.9 |  |  | 2,211.8 |  |  | 1,703.9 |  |  | 989.1 |
Less: Current Portion | 1,016.3 |  |  | 325.3 |  |  | 388.4 |  |  | 97.9 |  |  | 1,076.6 |  |  | 345.6 |  |  | 399.9 |  |  | 115.9 |
Total Long-Term Regulatory Assets | $ | 5,458.9 |  |  | $ | 1,981.8 |  |  | $ | 1,247.7 |  |  | $ | 829.8 |  |  | $ | 5,493.3 |  |  | $ | 1,866.2 |  |  | $ | 1,304.0 |  |  | $ | 873.2 |
Components of Regulatory Liabilities | The components of regulatory liabilities were as follows:
| As of September 30, 2021 |  | As of December 31, 2020
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
EDIT due to Tax Cuts and Jobs Act of 2017 | $ | 2,737.1 |  |  | $ | 1,001.5 |  |  | $ | 1,025.6 |  |  | $ | 363.9 |  |  | $ | 2,778.6 |  |  | $ | 1,010.7 |  |  | $ | 1,044.0 |  |  | $ | 371.5 |
Cost of Removal | 676.7 |  |  | 117.0 |  |  | 384.1 |  |  | 19.0 |  |  | 624.8 |  |  | 98.4 |  |  | 363.6 |  |  | 12.9 |
Benefit Costs | 65.9 |  |  | — |  |  | 56.5 |  |  | — |  |  | 83.6 |  |  | — |  |  | 72.5 |  |  | — |
Regulatory Tracker Mechanisms | 484.5 |  |  | 208.9 |  |  | 180.6 |  |  | 87.5 |  |  | 366.5 |  |  | 148.9 |  |  | 139.7 |  |  | 47.8 |
AFUDC - Transmission | 79.6 |  |  | 43.6 |  |  | 36.0 |  |  | — |  |  | 76.8 |  |  | 44.6 |  |  | 32.2 |  |  | — |
CL&P Settlement Agreement and Storm Performance Penalty | 103.4 |  |  | 103.4 |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | — |
Other Regulatory Liabilities | 373.3 |  |  | 50.4 |  |  | 84.6 |  |  | 15.8 |  |  | 309.9 |  |  | 39.5 |  |  | 63.2 |  |  | 9.8 |
Total Regulatory Liabilities | 4,520.5 |  |  | 1,524.8 |  |  | 1,767.4 |  |  | 486.2 |  |  | 4,240.2 |  |  | 1,342.1 |  |  | 1,715.2 |  |  | 442.0 |
Less: Current Portion | 612.9 |  |  | 311.3 |  |  | 205.8 |  |  | 96.8 |  |  | 389.4 |  |  | 137.2 |  |  | 164.8 |  |  | 58.8 |
Total Long-Term Regulatory Liabilities | $ | 3,907.6 |  |  | $ | 1,213.5 |  |  | $ | 1,561.6 |  |  | $ | 389.4 |  |  | $ | 3,850.8 |  |  | $ | 1,204.9 |  |  | $ | 1,550.4 |  |  | $ | 383.2 |

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