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Consumers Energy Company Consolidated Statements of Comprehensive Income (Parenthetical) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Net gain (loss) arising during the period, tax | $ 6 | $ (4) | $ (3)
Amortization of net actuarial loss, tax | 2 | 1 | 1
Consumers Energy Company |  |  |
Net gain (loss) arising during the period, tax | 1 | (3) | (3)
Amortization of net actuarial loss, tax | $ 1 | $ 1 | $ 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 -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=124509347&loc=d3e640-108580 + Details
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