XML 73 R54.htm IDEA: XBRL DOCUMENT
v3.23.1

ACCUMULATED OTHER COMPREHENSIVE INCOME/(LOSS) (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2023
Equity [Abstract] |
Changes in Accumulated Other Comprehensive Income/(Loss) by Component, Net of Tax | The changes in accumulated other comprehensive income/(loss) by component, net of tax, are as follows:
| For the Three Months Ended March 31, 2023 |  | For the Three Months Ended March 31, 2022
Eversource (Millions of Dollars) | Qualified Cash Flow Hedging Instruments |  | Unrealized Gains/(Losses) on Marketable Securities |  | Defined Benefit Plans |  | Total |  | Qualified Cash Flow Hedging Instruments |  | Unrealized Gains/(Losses) on Marketable Securities |  | Defined Benefit Plans |  | Total
Balance as of Beginning of Period | $ | (0.4) |  |  | $ | (1.2) |  |  | $ | (37.8) |  |  | $ | (39.4) |  |  | $ | (0.4) |  |  | $ | 0.4 |  |  | $ | (42.3) |  |  | $ | (42.3) |
OCI Before Reclassifications | — |  |  | — |  |  | — |  |  | — |  |  | — |  |  | (0.8) |  |  | — |  |  | (0.8) |
Amounts Reclassified from AOCI | — |  |  | 1.2 |  |  | 2.0 |  |  | 3.2 |  |  | — |  |  | — |  |  | 1.5 |  |  | 1.5 |
Net OCI | — |  |  | 1.2 |  |  | 2.0 |  |  | 3.2 |  |  | — |  |  | (0.8) |  |  | 1.5 |  |  | 0.7 |
Balance as of End of Period | $ | (0.4) |  |  | $ | — |  |  | $ | (35.8) |  |  | $ | (36.2) |  |  | $ | (0.4) |  |  | $ | (0.4) |  |  | $ | (40.8) |  |  | $ | (41.6) |

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

X
- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI https://asc.fasb.org/extlink&oid=126968391&loc=SL7669686-108580 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 830 -SubTopic 30 -Section 45 -Paragraph 20 -URI https://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900 + Details
Name: | us-gaap_ScheduleOfAccumulatedOtherComprehensiveIncomeLossTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration