v3.25.2
Employee Benefit Plans (Tables)
 6 Months Ended
Jun. 30, 2025
Qualified Pension Plans  
Defined Benefit Plan Disclosure [Line Items]  
Components of Net Periodic Pension Costs
The following tables include the components of net periodic pension costs for qualified pension plans.
Three Months Ended June 30, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$27 $9 $8 $4 $3 $1 $2 $1 
Interest cost on projected benefit obligation82 20 26 12 15 4 6 2 
Expected return on plan assets(149)(38)(55)(25)(30)(6)(10)(5)
Amortization of actuarial loss15 3 4 2 2 — 1 1 
Amortization of prior service credit(3)— — — — — (1)(1)
Amortization of settlement charges7 3 2 2 — — 1 1 
Net periodic pension costs$(21)$(3)$(15)$(5)$(10)$(1)$(1)$(1)
Three Months Ended June 30, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$29 $10 $8 $5 $4 $— $1 $1 
Interest cost on projected benefit obligation83 20 26 12 14 4 7 3 
Expected return on plan assets(154)(40)(54)(25)(29)(7)(11)(5)
Amortization of actuarial loss8 2 3 2 1 1 1 — 
Amortization of prior service credit(4)— — — — — (1)(2)
Amortization of settlement charges4 2 1 1 1 — 1 1 
Net periodic pension costs$(34)$(6)$(16)$(5)$(9)$(2)$(2)$(2)
Six Months Ended June 30, 2025
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$54 $18 $15 $9 $6 $1 $3 $2 
Interest cost on projected benefit obligation164 39 52 23 29 8 13 5 
Expected return on plan assets(298)(76)(110)(49)(60)(11)(20)(10)
Amortization of actuarial loss30 7 9 4 4 1 2 2 
Amortization of prior service credit(6)— — — — — (1)(3)
Amortization of settlement charges13 6 4 3 1 — 1 2 
Net periodic pension costs$(43)$(6)$(30)$(10)$(20)$(1)$(2)$(2)
Six Months Ended June 30, 2024
DukeDukeDukeDukeDuke
DukeEnergyProgressEnergyEnergyEnergyEnergy
(in millions)EnergyCarolinasEnergyProgressFloridaOhioIndianaPiedmont
Service cost$57 $19 $16 $10 $7 $1 $3 $2 
Interest cost on projected benefit obligation165 40 52 24 28 8 13 5 
Expected return on plan assets(308)(81)(108)(50)(58)(13)(21)(10)
Amortization of actuarial loss16 4 5 3 2 1 2 1 
Amortization of prior service credit(7)— — — — — (1)(4)
Amortization of settlement charges9 4 2 2 1 — 1 2 
Net periodic pension costs$(68)$(14)$(33)$(11)$(20)$(3)$(3)$(4)