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Employee Benefit Plans
6 Months Ended
Jun. 30, 2021
Retirement Benefits [Abstract]  
Employee Benefit Plans [Text Block]
Note 7 – Employee Benefit Plans
Net periodic benefit cost (credit) is as follows:
Pension Benefits
Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
(Millions)
Components of net periodic benefit cost (credit):
Service cost$$$15 $15 
Interest cost14 19 
Expected return on plan assets(11)(14)(22)(27)
Amortization of net actuarial loss11 
Net actuarial loss from settlements
Net periodic benefit cost (credit)$$11 $15 $26 
Other Postretirement Benefits
Three Months Ended 
June 30,
Six Months Ended 
June 30,
2021202020212020
(Millions)
Components of net periodic benefit cost (credit):
Interest cost$$$$
Expected return on plan assets(3)(2)(5)(5)
Reclassification to regulatory liability— — 
Net periodic benefit cost (credit)$(1)$(1)$(1)$(1)
The components of Net periodic benefit cost (credit) other than the Service cost component are included in Other income (expense) – net below Operating income (loss) in the Consolidated Statement of Operations.
During the six months ended June 30, 2021, we contributed $3 million to our pension plans and $3 million to our other postretirement benefit plans. We presently anticipate making additional contributions of approximately $1 million to our pension plans and approximately $2 million to our other postretirement benefit plans in the remainder of 2021.