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Revenue (Remaining Performance Obligations Total) (Details) $ in Millions | Jun. 30, 2022 USD ($)
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Progress Energy |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Revenue, remaining performance obligation, amount | $ 209
Duke Energy Progress |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Revenue, remaining performance obligation, amount | 20
Duke Energy Florida |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Revenue, remaining performance obligation, amount | 189
Duke Energy Indiana |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Revenue, remaining performance obligation, amount | 73
Piedmont |
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction [Line Items] |
Revenue, remaining performance obligation, amount | $ 553

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