0001326160 2026-03-31 2026-03-31 0001326160 duk:PiedmontNaturalGasCompanyMember 2026-03-31 2026-03-31 0001326160 us-gaap:CommonStockMember 2026-03-31 2026-03-31 0001326160 duk:JuniorSubordinatedDebentures5.625CouponDueSeptember2078Member 2026-03-31 2026-03-31 0001326160 duk:DepositoryShareMember 2026-03-31 2026-03-31 0001326160 duk:Percentage310seniornotesdue2028Member 2026-03-31 2026-03-31 0001326160 duk:Percentage385seniornotesdue2034Member 2026-03-31 2026-03-31 0001326160 duk:ThreepointsevenfivepercentSeniorNotesdue2031Member 2026-03-31 2026-03-31 false 0001326160 0000078460 false 8-K 2026-03-31 false false false false false 8-K 2026-03-31 1-32853 DUKE ENERGY CORPORATION DE 525 South Tryon Street Charlotte NC 28202 800 488-3853 20-2777218 1-6196 PIEDMONT NATURAL GAS COMPANY, INC. NC 525 South Tryon Street Charlotte NC 28202 800 488-3853 56-0556998 false false false false Common Stock, $0.001 par value DUK NYSE 5.625% Junior Subordinated Debentures due September 15, 2078 DUKB NYSE Depositary Shares DUK PR A NYSE 3.10% Senior Notes due 2028 DUK 28A NYSE 3.85% Senior Notes due 2034 DUK 34 NYSE 3.75% Senior Notes due 2031 DUK 31A NYSE false