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Employee Retirement Benefits
 3 Months Ended
Mar. 31, 2024
Retirement Benefits [Abstract]  
Employee Retirement Benefits Employee Retirement Benefits
NEE sponsors a qualified noncontributory defined benefit pension plan for substantially all employees of NEE and its subsidiaries and sponsors a contributory postretirement plan for other benefits for retirees of NEE and its subsidiaries meeting certain eligibility requirements.

The components of net periodic cost (income) for the plans are as follows:
 Pension BenefitsPostretirement Benefits
 Three Months Ended March 31,Three Months Ended March 31,
 2024202320242023
 (millions)
Service cost$18 $16 $— $— 
Interest cost33 33 2 3 
Expected return on plan assets(102)(98)— — 
Special termination benefit(a)
28 — — — 
Net periodic cost (income) at NEE$(23)$(49)$2 $3 
Net periodic cost (income) allocated to FPL$(9)$(32)$2 $2 
———————————————
(a) Reflects enhanced early retirement benefit.