Employee Postretirement Benefits (Tables)

3 Months Ended

Mar. 31, 2024

TECO Energy [Member]

Schedule of Net Periodic Benefit Cost

The following table presents detail related to TECO Energy’s periodic benefit cost for pension and other postretirement benefits. Amounts disclosed for TECO Energy’s pension benefits include the amounts related to its qualified pension plan and non-qualified, non-contributory SERP and Restoration Plan.

TECO Energy Benefit Cost
(millions)	Pension Benefits						Other Postretirement Benefits
Three months ended March 31,	2024			2023			2024			2023
Components of net periodic benefit cost
Service cost	$	4		$	4		$	0		$	0
Interest cost		9			9			2			2
Expected return on assets		(14	)		(14	)		0			0
Amortization of actuarial loss (gain)		2			1			(1	)		0
Net periodic benefit cost	$	1		$	0		$	1		$	2