v3.25.2
Retirement Benefits and Trusteed Assets (Tables)
 6 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Schedule of Net Periodic Benefit Costs (Credits)
The following tables detail the components of net periodic benefit costs (credits) for pension benefits and other postretirement benefits for DTE Energy:
Pension BenefitsOther Postretirement Benefits
2025202420252024
(In millions)
Three Months Ended June 30,
Service cost$12 $15 $3 $5 
Interest cost54 52 16 15 
Expected return on plan assets(72)(85)(30)(30)
Amortization of:
Net actuarial loss22 14 1 1 
Prior service credit— — — (2)
Net periodic benefit cost (credit)$16 $(4)$(10)$(11)
Pension BenefitsOther Postretirement Benefits
2025202420252024
(In millions)
Six Months Ended June 30,
Service cost$24 $29 $7 $9 
Interest cost108 104 31 31 
Expected return on plan assets(145)(170)(59)(60)
Amortization of:
Net actuarial loss44 29 1 3 
Prior service credit— (1)— (5)
Net periodic benefit cost (credit)$31 $(9)$(20)$(22)
The following table details the components of net periodic benefit costs (credits) for other postretirement benefits for DTE Electric:
Three Months Ended June 30,Six Months Ended June 30,
2025202420252024
(In millions)
Service cost$3 $4 $6 $7 
Interest cost11 12 23 24 
Expected return on plan assets(19)(19)(38)(39)
Amortization of:
Net actuarial gain— — (1)— 
Prior service credit— (3)— (4)
Net periodic benefit credit$(5)$(6)$(10)$(12)