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Non-Derivative Fair Value Measurements - Nonrecurring Fair Value Measurements (Details) - Mountain Valley Pipeline - NextEra Energy Resources $ in Billions | 3 Months Ended
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Mar. 31, 2022 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
Impairment charge | $ 0.8
Impairment charge, net of tax | 0.6
Equity method investments, write off | 0.6
Equity method investments, liability | $ 0.2

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