The changes in accumulated other comprehensive income/(loss) by component, net of tax, are as follows: | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | For the Six Months Ended June 30, 2026 | | For the Six Months Ended June 30, 2025 | Eversource (Millions of Dollars) | Qualified
Cash Flow
Hedging
Instruments | | Defined
Benefit Plans | | Total | | Qualified
Cash Flow
Hedging
Instruments | | | | Defined
Benefit Plans | | Total | | Balance as of Beginning of Period | $ | (0.4) | | | $ | (20.1) | | | $ | (20.5) | | | $ | (0.4) | | | | | $ | (26.1) | | | $ | (26.5) | | | | | | | | | | | | | | | | OCI Before Reclassifications | — | | | 0.4 | | | 0.4 | | | — | | | | | (0.9) | | | (0.9) | | Amounts Reclassified from AOCI | — | | | 0.8 | | | 0.8 | | | — | | | | | 3.5 | | | 3.5 | | | Net OCI | — | | | 1.2 | | | 1.2 | | | — | | | | | 2.6 | | | 2.6 | | | Balance as of End of Period | $ | (0.4) | | | $ | (18.9) | | | $ | (19.3) | | | $ | (0.4) | | | | | $ | (23.5) | | | $ | (23.9) | |
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