v3.25.2
Benefit Plans (Tables)
 9 Months Ended
Jun. 30, 2025
Retirement Benefits [Abstract]  
Components of TVA's Benefit Plans
The components of net periodic benefit cost for the three and nine months ended June 30, 2025 and 2024, were as follows:
Components of Net Periodic Benefit Cost(1)
(in millions)
 
For the Three Months Ended June 30
For the Nine Months Ended June 30
 Pension BenefitsOther Post-Retirement BenefitsPension BenefitsOther Post-Retirement Benefits
 20252024202520242025202420252024
Service cost$8 $7 $3 $3 $24 $22 $9 $8 
Interest cost131 145 3 4 394 434 12 15 
Expected return on plan assets(126)(123)— — (379)(370)— — 
Amortization of prior service credit(22)(22)(4)(4)(67)(67)(13)(13)
Recognized net actuarial loss44 25 — — 131 75 — — 
Total net periodic benefit cost35 32 2 3 103 94 8 10 
Special/contractual termination benefits(2)
— — 1 — — — 1 — 
Total benefit cost$35 $32 $3 $3 $103 $94 $9 $10 
Note
(1) The components of net benefit cost other than the service cost component are included in Other net periodic benefit cost on the Consolidated Statements of Operations.
(2) Special/contractual termination benefits for certain eligible employees related to TVA's restructuring activities. See Note 3 — Restructuring.