Non-Derivative Fair Value Measurements - Nonrecurring Fair Value Measurements (Details) - Mountain Valley Pipeline - NextEra Energy Resources $ in Billions	3 Months Ended
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

The aggregate amount of write-downs for impairments recognized during the period for long lived assets held for use (including those held for disposal by means other than sale).

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