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Consumers Energy Company Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Net gain (loss) arising during the period, tax | $ 2 | $ 1 | $ 2
Amortization of net actuarial loss, tax | 0 | 0 | 0
Consumers Energy Company |  |  |
Net gain (loss) arising during the period, tax | (1) | 1 | 0
Amortization of net actuarial loss, tax | $ 0 | $ 0 | $ 0

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- Definition Amount of tax expense (benefit) of reclassification adjustment from accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 12 -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482790/220-10-45-12 + Details
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