XML 92 R57.htm IDEA: XBRL DOCUMENT
v3.22.4

REGULATORY ACCOUNTING (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2022
Regulated Operations [Abstract] |
Components of Regulatory Assets | The components of regulatory assets were as follows:
| As of December 31,
| 2022 |  | 2021
(Millions of Dollars) | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH |  | Eversource |  | CL&P |  | NSTAR Electric |  | PSNH
Benefit Costs | $ | 921.7 |  |  | $ | 156.7 |  |  | $ | 299.5 |  |  | $ | 56.6 |  |  | $ | 1,481.0 |  |  | $ | 272.4 |  |  | $ | 395.5 |  |  | $ | 118.9 |
Storm Costs, Net | 1,379.1 |  |  | 799.3 |  |  | 484.4 |  |  | 95.4 |  |  | 1,102.7 |  |  | 695.6 |  |  | 341.3 |  |  | 65.8 |
Regulatory Tracking Mechanisms | 1,075.3 |  |  | 216.8 |  |  | 391.5 |  |  | 73.7 |  |  | 1,050.5 |  |  | 333.6 |  |  | 376.6 |  |  | 85.4 |
Income Taxes, Net | 853.3 |  |  | 491.1 |  |  | 115.6 |  |  | 16.0 |  |  | 790.7 |  |  | 470.5 |  |  | 112.6 |  |  | 17.5 |
Securitized Stranded Costs | 435.7 |  |  | — |  |  | — |  |  | 435.7 |  |  | 478.9 |  |  | — |  |  | — |  |  | 478.9 |
Goodwill-related | 281.0 |  |  | — |  |  | 241.2 |  |  | — |  |  | 297.8 |  |  | — |  |  | 255.7 |  |  | — |
Derivative Liabilities | 181.8 |  |  | 181.8 |  |  | — |  |  | — |  |  | 249.2 |  |  | 249.2 |  |  | — |  |  | — |
Asset Retirement Obligations | 127.9 |  |  | 35.9 |  |  | 68.2 |  |  | 4.4 |  |  | 115.0 |  |  | 33.6 |  |  | 59.8 |  |  | 4.1 |
Other Regulatory Assets | 322.5 |  |  | 26.2 |  |  | 114.0 |  |  | 14.4 |  |  | 150.0 |  |  | 29.9 |  |  | 37.7 |  |  | 15.8 |
Total Regulatory Assets | 5,578.3 |  |  | 1,907.8 |  |  | 1,714.4 |  |  | 696.2 |  |  | 5,715.8 |  |  | 2,084.8 |  |  | 1,579.2 |  |  | 786.4 |
Less: Current Portion | 1,335.5 |  |  | 314.1 |  |  | 492.8 |  |  | 102.2 |  |  | 1,129.1 |  |  | 371.6 |  |  | 444.0 |  |  | 107.2 |
Total Long-Term Regulatory Assets | $ | 4,242.8 |  |  | $ | 1,593.7 |  |  | $ | 1,221.6 |  |  | $ | 594.0 |  |  | $ | 4,586.7 |  |  | $ | 1,713.2 |  |  | $ | 1,135.2 |  |  | $ | 679.2 |
Components of Regulatory Liabilities | The components of regulatory liabilities were as follows:
| As of December 31,
| 2022 |  | 2021
(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 | $ | 2,619.3 |  |  | $ | 983.6 |  |  | $ | 944.3 |  |  | $ | 348.6 |  |  | $ | 2,685.2 |  |  | $ | 996.1 |  |  | $ | 984.5 |  |  | $ | 359.2 |
Cost of Removal | 670.6 |  |  | 130.8 |  |  | 405.3 |  |  | 14.7 |  |  | 649.6 |  |  | 100.1 |  |  | 381.0 |  |  | 17.2 |
Regulatory Tracking Mechanisms | 890.8 |  |  | 361.0 |  |  | 336.1 |  |  | 155.0 |  |  | 448.4 |  |  | 182.0 |  |  | 185.1 |  |  | 107.0 |
Deferred Portion of Non-Service Income Components of Pension, SERP and PBOP | 270.9 |  |  | 34.5 |  |  | 139.7 |  |  | 28.8 |  |  | 148.3 |  |  | 12.0 |  |  | 90.7 |  |  | 14.9 |
Benefit Costs | 55.4 |  |  | 0.7 |  |  | 31.4 |  |  | — |  |  | 133.5 |  |  | — |  |  | 107.4 |  |  | — |
AFUDC - Transmission | 98.2 |  |  | 48.2 |  |  | 50.0 |  |  | — |  |  | 81.0 |  |  | 43.2 |  |  | 37.8 |  |  | — |
CL&P Settlement Agreement and Storm Performance Penalty | — |  |  | — |  |  | — |  |  | — |  |  | 81.3 |  |  | 81.3 |  |  | — |  |  | — |
Other Regulatory Liabilities | 215.9 |  |  | 40.6 |  |  | 14.5 |  |  | 6.5 |  |  | 241.4 |  |  | 45.1 |  |  | 0.8 |  |  | 3.3 |
Total Regulatory Liabilities | 4,821.1 |  |  | 1,599.4 |  |  | 1,921.3 |  |  | 553.6 |  |  | 4,468.7 |  |  | 1,459.8 |  |  | 1,787.3 |  |  | 501.6 |
Less: Current Portion | 890.8 |  |  | 336.0 |  |  | 373.2 |  |  | 162.0 |  |  | 602.4 |  |  | 266.5 |  |  | 228.2 |  |  | 120.2 |
Total Long-Term Regulatory Liabilities | $ | 3,930.3 |  |  | $ | 1,263.4 |  |  | $ | 1,548.1 |  |  | $ | 391.6 |  |  | $ | 3,866.3 |  |  | $ | 1,193.3 |  |  | $ | 1,559.1 |  |  | $ | 381.4 |

X
- References No definition available. + Details
Name: | us-gaap_RegulatedOperationsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- 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 https://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 https://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 https://asc.fasb.org/extlink&oid=6499975&loc=d3e44264-110382 + Details
Name: | us-gaap_ScheduleOfRegulatoryAssetsTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- 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 https://asc.fasb.org/extlink&oid=6500807&loc=d3e48068-110394 + Details
Name: | us-gaap_ScheduleOfRegulatoryLiabilitiesTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration