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Retirement Benefits and Trusteed Assets
 6 Months Ended
Jun. 30, 2022
Retirement Benefits [Abstract]  
Retirement Benefits and Trusteed Assets RETIREMENT BENEFITS AND TRUSTEED ASSETS
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
Three Months Ended June 30,
2022202120222021
(In millions)
Service cost$23 $27 $7 $7 
Interest cost42 40 12 12 
Expected return on plan assets(86)(86)(31)(32)
Amortization of:
Net actuarial loss28 49 1 4 
Prior service credit— — (5)(5)
Net periodic benefit cost (credit)$7 $30 $(16)$(14)
Pension BenefitsOther Postretirement Benefits
Six Months Ended June 30,
2022202120222021
(In millions)
Service cost$47 $54 $14 $15 
Interest cost83 79 24 23 
Expected return on plan assets(173)(170)(63)(64)
Amortization of:
Net actuarial loss57 98 2 7 
Prior service credit— — (10)(10)
Net periodic benefit cost (credit)$14 $61 $(33)$(29)
DTE Electric participates in various plans that provide pension and other postretirement benefits for DTE Energy and its affiliates. The plans are primarily sponsored by DTE Energy's subsidiary, DTE Energy Corporate Services, LLC. DTE Electric accounts for its participation in DTE Energy's qualified and non-qualified pension plans by applying multiemployer accounting. DTE Electric accounts for its participation in other postretirement benefit plans by applying multiple-employer accounting. Within multiemployer and multiple-employer plans, participants pool plan assets for investment purposes and to reduce the cost of plan administration. The primary difference between plan types is assets contributed in multiemployer plans can be used to provide benefits for all participating employers, while assets contributed within a multiple-employer plan are restricted for use by the contributing employer. As a result of multiemployer accounting treatment, capitalized costs associated with these plans are reflected in Property, plant, and equipment in DTE Electric's Consolidated Statements of Financial Position. The same capitalized costs are reflected as Regulatory assets and liabilities in DTE Energy's Consolidated Statements of Financial Position. In addition, the service cost and non-service cost components are presented in Operation and maintenance in DTE Electric's Consolidated Statements of Operations. The same non-service cost components are presented in Other (Income) and Deductions — Non-operating retirement benefits, net in DTE Energy's Consolidated Statements of Operations. Plan participants of all plans are solely DTE Energy and affiliate participants.
DTE Energy's subsidiaries are responsible for their share of qualified and non-qualified pension benefit costs. DTE Electric's allocated portion of pension benefit costs included in capital expenditures and operating and maintenance expense was $9 million and $26 million for the three months ended June 30, 2022 and 2021, respectively, and $18 million and $52 million for the six months ended June 30, 2022 and 2021, respectively. These amounts include recognized contractual termination benefit charges, curtailment gains, and settlement charges.
The following tables detail 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,
2022202120222021
(In millions)
Service cost$5 $5 $10 $11 
Interest cost9 9 18 17 
Expected return on plan assets(21)(21)(42)(43)
Amortization of:
Net actuarial loss1 3 2 6 
Prior service credit(3)(4)(6)(7)
Net periodic benefit credit$(9)$(8)$(18)$(16)
Pension and Other Postretirement Contributions
No contributions are currently expected for DTE Energy's qualified pension plans or postretirement benefit plans in 2022. Plans may be updated at the discretion of management and depending on economic and financial market conditions. DTE Energy anticipates a transfer of up to $50 million of qualified pension plan funds from DTE Gas to DTE Electric during 2022.