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Retirement Benefits and Trusteed Assets (Tables) | 12 Months Ended
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Dec. 31, 2022
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Defined Benefit Plans Disclosures | The table below represents the pension and other postretirement benefit plans of each Registrant at December 31, 2022:
| Registrants
| DTE Energy |  | DTE Electric
Qualified Pension Plans |  |  |
DTE Energy Company Retirement Plan | X |  | X
DTE Gas Company Retirement Plan for Employees Covered by Collective Bargaining Agreements | X |  |
Shenango Inc. Pension Plan(a) | X |  |
Non-qualified Pension Plans |  |  |
DTE Energy Company Supplemental Retirement Plan(b) | X |  | X
DTE Energy Company Executive Supplemental Retirement Plan(b) | X |  | X
DTE Energy Company Supplemental Severance Benefit Plan | X |  |
Other Postretirement Benefit Plans |  |  |
The DTE Energy Company Comprehensive Non-Health Welfare Plan | X |  | X
The DTE Energy Company Comprehensive Retiree Group Health Care Plan | X |  | X
DTE Supplemental Retiree Benefit Plan | X |  | X
DTE Energy Company Retiree Reimbursement Arrangement Plan | X |  | X
_____________________________________ (a)Sponsored by Shenango, LLC (b)Sponsored by DTE Energy Company
Pension Plan |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Defined Benefit Plans Disclosures | The following table reconciles the obligations, assets, and funded status of the plans as well as the amounts recognized as prepaid pension cost or pension liability in DTE Energy's Consolidated Statements of Financial Position at December 31:
| DTE Energy
| 2022 |  | 2021
| (In millions)
Accumulated benefit obligation, end of year | $ | 4,078 |  |  | $ | 5,448 |
Change in projected benefit obligation |  |  |
Projected benefit obligation, beginning of year | $ | 5,857 |  |  | $ | 6,304 |
Service cost | 95 |  |  | 108 |
Interest cost | 166 |  |  | 158 |
Plan amendments | — |  |  | 4 |
Actuarial gain | (1,252) |  |  | (255) |
Benefits paid | (278) |  |  | (414) |
Settlements | (279) |  |  | (48) |
Projected benefit obligation, end of year | $ | 4,309 |  |  | $ | 5,857 |
Change in plan assets |  |  |
Plan assets at fair value, beginning of year | $ | 5,507 |  |  | $ | 5,497 |
Actual return on plan assets | (1,062) |  |  | 460 |
Company contributions | 9 |  |  | 12 |
Benefits paid | (278) |  |  | (414) |
Settlements | (279) |  |  | (48) |
Plan assets at fair value, end of year | $ | 3,897 |  |  | $ | 5,507 |
Funded status | $ | (412) |  |  | $ | (350) |
Amount recorded as: |  |  |
Current liabilities | $ | (34) |  |  | $ | (11) |
Noncurrent liabilities | (378) |  |  | (339) |
| $ | (412) |  |  | $ | (350) |
Amounts recognized in Accumulated other comprehensive income (loss), pre-tax |  |  |
Net actuarial loss | $ | 85 |  |  | $ | 126 |
Prior service cost | — |  |  | 1 |
| $ | 85 |  |  | $ | 127 |
Amounts recognized in Regulatory assets(a) |  |  |
Net actuarial loss | $ | 1,369 |  |  | $ | 1,381 |
Prior service credit | (7) |  |  | (9) |
| $ | 1,362 |  |  | $ | 1,372 |
______________________________________ (a)See Note 9 to the Consolidated Financial Statements, "Regulatory Matters."
Schedule of Net Benefit Costs | Net pension cost for DTE Energy includes the following components:
| 2022 |  | 2021 |  | 2020
| (In millions)
Service cost | $ | 95 |  |  | $ | 108 |  |  | $ | 99 |
Interest cost | 166 |  |  | 158 |  |  | 186 |
Expected return on plan assets | (346) |  |  | (339) |  |  | (334) |
Amortization of: |  |  |  |  |
Net actuarial loss | 115 |  |  | 196 |  |  | 171 |
Prior service cost (credit) | (1) |  |  | — |  |  | 1 |
Settlements | 94 |  |  | 16 |  |  | 25 |
Net pension cost | $ | 123 |  |  | $ | 139 |  |  | $ | 148 |
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) |
| 2022 |  | 2021
| (In millions)
Other changes in plan assets and benefit obligations recognized in Regulatory assets and Other comprehensive income (loss) |  |  |
Net actuarial (gain) loss | $ | 156 |  |  | $ | (376) |
Amortization of net actuarial loss and settlements | (209) |  |  | (209) |
Prior service cost | — |  |  | 4 |
Amortization of prior service (cost) credit | 1 |  |  | (3) |
Total recognized in Regulatory assets and Other comprehensive income (loss) | $ | (52) |  |  | $ | (584) |
Total recognized in net periodic pension cost, Regulatory assets, and Other comprehensive income (loss) | $ | 71 |  |  | $ | (445) |
Schedule of Expected Benefit Payments | At December 31, 2022, the benefits related to DTE Energy's qualified and non-qualified pension plans expected to be paid in each of the next five years and in the aggregate for the five fiscal years thereafter are as follows:
| (In millions)
2023 | $ | 344 |
2024 | 319 |
2025 | 328 |
2026 | 323 |
2027 | 323 |
2028-2032 | 1,616 |
Total | $ | 3,253 |
Schedule of Assumptions Used | Assumptions used in determining the projected benefit obligation and net pension costs of DTE Energy are:
| 2022 |  | 2021 |  | 2020
Projected benefit obligation |  |  |  |  |
Discount rate | 5.19% |  | 2.91% |  | 2.57%
Rate of compensation increase | 3.80% |  | 3.80% |  | 3.80%
Cash balance interest crediting rate | 3.40% |  | 2.40% |  | 2.00%
Net pension costs |  |  |  |  |
Discount rate | 2.91% |  | 2.57% |  | 3.28%
Rate of compensation increase | 3.80% |  | 3.80% |  | 3.85%
Expected long-term rate of return on plan assets | 6.80% |  | 7.00% |  | 7.10%
Cash balance interest crediting rate | 2.40% |  | 2.00% |  | 3.30%
Schedule of Allocation of Plan Assets | Target allocations for DTE Energy's pension plan assets as of December 31, 2022 are listed below:
U.S. Large Capitalization (Cap) Equity Securities | 15 | %
U.S. Small Cap and Mid Cap Equity Securities | 3 |
Non-U.S. Equity Securities | 12 |
Fixed Income Securities | 48 |
Hedge Funds and Similar Investments | 9 |
Private Equity and Other | 13 |
| 100 | %
The following table provides the fair value measurement amounts for DTE Energy's pension plan assets at December 31, 2022 and 2021(a):
| December 31, 2022 |  | December 31, 2021
| Level 1 |  | Level 2 |  |  |  | Other(b) |  | Total |  | Level 1 |  | Level 2 |  |  |  | Other(b) |  | Total
DTE Energy asset category: | (In millions)
Short-term Investments(c) | $ | 77 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 77 |  |  | $ | 112 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 112 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic(d) | — |  |  | — |  |  |  |  | 483 |  |  | 483 |  |  | 155 |  |  | — |  |  |  |  | 758 |  |  | 913 |
International(e) | 65 |  |  | — |  |  |  |  | 416 |  |  | 481 |  |  | 88 |  |  | — |  |  |  |  | 588 |  |  | 676 |
Fixed Income Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Governmental(f) | 506 |  |  | 77 |  |  |  |  | — |  |  | 583 |  |  | 943 |  |  | 83 |  |  |  |  | — |  |  | 1,026 |
Corporate(g) | — |  |  | 1,203 |  |  |  |  | — |  |  | 1,203 |  |  | — |  |  | 1,466 |  |  |  |  | — |  |  | 1,466 |
Hedge Funds and Similar Investments(h) | 86 |  |  | 50 |  |  |  |  | 185 |  |  | 321 |  |  | 139 |  |  | 63 |  |  |  |  | 365 |  |  | 567 |
Private Equity and Other(i) | — |  |  | — |  |  |  |  | 749 |  |  | 749 |  |  | — |  |  | — |  |  |  |  | 747 |  |  | 747 |
DTE Energy Total | $ | 734 |  |  | $ | 1,330 |  |  |  |  | $ | 1,833 |  |  | $ | 3,897 |  |  | $ | 1,437 |  |  | $ | 1,612 |  |  |  |  | $ | 2,458 |  |  | $ | 5,507 |
_______________________________________ (a)For a description of levels within the fair value hierarchy, see Note 12 to the Consolidated Financial Statements, "Fair Value." (b)Amounts represent assets valued at NAV as a practical expedient for fair value. (c)This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d)This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (e)This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f)This category includes U.S. Treasuries, bonds, and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g)This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. (h)This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i)This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets.
Other postretirement benefit plan |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of Defined Benefit Plans Disclosures | The following table reconciles the obligations, assets, and funded status of the plans including amounts recorded as Accrued postretirement liability in the Registrants' Consolidated Statements of Financial Position at December 31:
| DTE Energy |  | DTE Electric
| 2022 |  | 2021 |  | 2022 |  | 2021
| (In millions)
Change in accumulated postretirement benefit obligation |  |  |  |  |  |  |
Accumulated postretirement benefit obligation, beginning of year | $ | 1,702 |  |  | $ | 1,807 |  |  | $ | 1,293 |  |  | $ | 1,369 |
Service cost | 27 |  |  | 30 |  |  | 20 |  |  | 23 |
Interest cost | 48 |  |  | 46 |  |  | 37 |  |  | 35 |
Plan amendments | — |  |  | 1 |  |  | — |  |  | — |
Actuarial gain | (395) |  |  | (100) |  |  | (301) |  |  | (73) |
Benefits paid | (89) |  |  | (82) |  |  | (67) |  |  | (61) |
Accumulated postretirement benefit obligation, end of year | $ | 1,293 |  |  | $ | 1,702 |  |  | $ | 982 |  |  | $ | 1,293 |
Change in plan assets |  |  |  |  |  |  |
Plan assets at fair value, beginning of year | $ | 2,021 |  |  | $ | 1,960 |  |  | $ | 1,355 |  |  | $ | 1,320 |
Actual return on plan assets | (359) |  |  | 142 |  |  | (239) |  |  | 96 |
Benefits paid | (85) |  |  | (81) |  |  | (64) |  |  | (61) |
Plan assets at fair value, end of year | $ | 1,577 |  |  | $ | 2,021 |  |  | $ | 1,052 |  |  | $ | 1,355 |
Funded status | $ | 284 |  |  | $ | 319 |  |  | $ | 70 |  |  | $ | 62 |
Amount recorded as: |  |  |  |  |  |  |
Noncurrent assets | $ | 571 |  |  | $ | 678 |  |  | $ | 345 |  |  | $ | 402 |
Current liabilities | — |  |  | (1) |  |  | — |  |  | — |
Noncurrent liabilities | (287) |  |  | (358) |  |  | (275) |  |  | (340) |
| $ | 284 |  |  | $ | 319 |  |  | $ | 70 |  |  | $ | 62 |
Amounts recognized in Accumulated other comprehensive income (loss), pre-tax |  |  |  |  |  |  |
Net actuarial gain | $ | (14) |  |  | $ | (1) |  |  | $ | — |  |  | $ | — |
Amounts recognized in Regulatory assets(a) |  |  |  |  |  |  |
Net actuarial loss | $ | 201 |  |  | $ | 102 |  |  | $ | 80 |  |  | $ | 61 |
Prior service credit | (29) |  |  | (49) |  |  | (20) |  |  | (34) |
| $ | 172 |  |  | $ | 53 |  |  | $ | 60 |  |  | $ | 27 |
______________________________________ (a)See Note 9 to the Consolidated Financial Statements, "Regulatory Matters."
Schedule of Net Benefit Costs | Net other postretirement credit for DTE Energy includes the following components:
| 2022 |  | 2021 |  | 2020
| (In millions)
Service cost | $ | 27 |  |  | $ | 30 |  |  | $ | 26 |
Interest cost | 48 |  |  | 46 |  |  | 56 |
Expected return on plan assets | (126) |  |  | (129) |  |  | (128) |
Amortization of: |  |  |  |  |
Net actuarial loss | 4 |  |  | 13 |  |  | 16 |
Prior service credit | (19) |  |  | (19) |  |  | (19) |
Net other postretirement credit | $ | (66) |  |  | $ | (59) |  |  | $ | (49) |
Net other postretirement credit for DTE Electric includes the following components:
| 2022 |  | 2021 |  | 2020
| (In millions)
Service cost | $ | 20 |  |  | $ | 23 |  |  | $ | 20 |
Interest cost | 37 |  |  | 35 |  |  | 43 |
Expected return on plan assets | (85) |  |  | (86) |  |  | (87) |
Amortization of: |  |  |  |  |
Net actuarial loss | 5 |  |  | 11 |  |  | 11 |
Prior service credit | (14) |  |  | (14) |  |  | (14) |
Net other postretirement credit | $ | (37) |  |  | $ | (31) |  |  | $ | (27) |
Schedule of Amounts Recognized in Other Comprehensive Income (Loss) |
| 2022 |  | 2021
| (In millions)
Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets and Other comprehensive income (loss) |  |  |
Net actuarial (gain) loss | $ | 90 |  |  | $ | (113) |
Amortization of net actuarial loss | (4) |  |  | (13) |
Prior service cost | 1 |  |  | 1 |
Amortization of prior service credit | 19 |  |  | 19 |
Total recognized in Regulatory assets and Other comprehensive income (loss) | $ | 106 |  |  | $ | (106) |
Total recognized in net periodic benefit cost, Regulatory assets, and Other comprehensive income (loss) | $ | 40 |  |  | $ | (165) |
| 2022 |  | 2021
| (In millions)
Other changes in plan assets and accumulated postretirement benefit obligation recognized in Regulatory assets |  |  |
Net actuarial (gain) loss | $ | 24 |  |  | $ | (84) |
Amortization of net actuarial loss | (5) |  |  | (11) |
Amortization of prior service credit | 14 |  |  | 14 |
Total recognized in Regulatory assets | $ | 33 |  |  | $ | (81) |
Total recognized in net periodic benefit cost and Regulatory assets | $ | (4) |  |  | $ | (112) |
Schedule of Expected Benefit Payments | At December 31, 2022, the benefits expected to be paid, including prescription drug benefits, in each of the next five years and in the aggregate for the five fiscal years thereafter for the Registrants are as follows:
| DTE Energy |  | DTE Electric
| (In millions)
2023 | $ | 84 |  |  | $ | 64 |
2024 | 89 |  |  | 67 |
2025 | 90 |  |  | 68 |
2026 | 91 |  |  | 69 |
2027 | 94 |  |  | 71 |
2028-2032 | 488 |  |  | 371 |
Total | $ | 936 |  |  | $ | 710 |
Schedule of Assumptions Used | Assumptions used in determining the accumulated postretirement benefit obligation and net other postretirement benefit costs of the Registrants are:
| 2022 |  | 2021 |  | 2020
Accumulated postretirement benefit obligation |  |  |  |  |
Discount rate | 5.19% |  | 2.91% |  | 2.58%
Health care trend rate pre- and post- 65 | 6.75 / 7.25% |  | 6.75 / 7.25% |  | 6.75 / 7.25%
Ultimate health care trend rate | 4.50% |  | 4.50% |  | 4.50%
Year in which ultimate reached pre- and post- 65 | 2035 |  | 2034 |  | 2033
Other postretirement benefit costs |  |  |  |  |
Discount rate | 2.91% |  | 2.58% |  | 3.29%
Expected long-term rate of return on plan assets | 6.40% |  | 6.70% |  | 7.20%
Health care trend rate pre- and post- 65 | 6.75 / 7.25% |  | 6.75 / 7.25% |  | 6.75 / 7.25%
Ultimate health care trend rate | 4.50% |  | 4.50% |  | 4.50%
Year in which ultimate reached pre- and post- 65 | 2034 |  | 2033 |  | 2032
Schedule of Allocation of Plan Assets | Target allocations for the Registrants' other postretirement benefit plan assets as of December 31, 2022 are listed below:
U.S. Large Cap Equity Securities | 5 | %
U.S. Small Cap and Mid Cap Equity Securities | 1 |
Non-U.S. Equity Securities | 4 |
Fixed Income Securities | 61 |
Hedge Funds and Similar Investments | 9 |
Private Equity and Other | 20 |
| 100 | %
The following tables provide the fair value measurement amounts for the Registrants' other postretirement benefit plan assets at December 31, 2022 and 2021(a):
| December 31, 2022 |  | December 31, 2021
| Level 1 |  | Level 2 |  |  |  | Other(b) |  | Total |  | Level 1 |  | Level 2 |  |  |  | Other(b) |  | Total
| (In millions)
DTE Energy asset category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Investments(c) | $ | 35 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 35 |  |  | $ | 39 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 39 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic(d) | — |  |  | — |  |  |  |  | 78 |  |  | 78 |  |  | 27 |  |  | — |  |  |  |  | 199 |  |  | 226 |
International(e) | 9 |  |  | — |  |  |  |  | 61 |  |  | 70 |  |  | 27 |  |  | — |  |  |  |  | 141 |  |  | 168 |
Fixed Income Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Governmental(f) | 264 |  |  | 32 |  |  |  |  | — |  |  | 296 |  |  | 343 |  |  | 32 |  |  |  |  | — |  |  | 375 |
Corporate(g) | — |  |  | 396 |  |  |  |  | 194 |  |  | 590 |  |  | — |  |  | 355 |  |  |  |  | 271 |  |  | 626 |
Hedge Funds and Similar Investments(h) | 31 |  |  | 22 |  |  |  |  | 94 |  |  | 147 |  |  | 58 |  |  | 26 |  |  |  |  | 120 |  |  | 204 |
Private Equity and Other(i) | — |  |  | — |  |  |  |  | 361 |  |  | 361 |  |  | — |  |  | — |  |  |  |  | 383 |  |  | 383 |
DTE Energy Total | $ | 339 |  |  | $ | 450 |  |  |  |  | $ | 788 |  |  | $ | 1,577 |  |  | $ | 494 |  |  | $ | 413 |  |  |  |  | $ | 1,114 |  |  | $ | 2,021 |
DTE Electric asset category: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Short-term Investments(c) | $ | 23 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 23 |  |  | $ | 26 |  |  | $ | — |  |  |  |  | $ | — |  |  | $ | 26 |
Equity Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Domestic(d) | — |  |  | — |  |  |  |  | 50 |  |  | 50 |  |  | 18 |  |  | — |  |  |  |  | 132 |  |  | 150 |
International(e) | 5 |  |  | — |  |  |  |  | 39 |  |  | 44 |  |  | 18 |  |  | — |  |  |  |  | 93 |  |  | 111 |
Fixed Income Securities |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Governmental(f) | 178 |  |  | 21 |  |  |  |  | — |  |  | 199 |  |  | 230 |  |  | 21 |  |  |  |  | — |  |  | 251 |
Corporate(g) | — |  |  | 262 |  |  |  |  | 134 |  |  | 396 |  |  | — |  |  | 235 |  |  |  |  | 187 |  |  | 422 |
Hedge Funds and Similar Investments(h) | 20 |  |  | 15 |  |  |  |  | 63 |  |  | 98 |  |  | 39 |  |  | 17 |  |  |  |  | 81 |  |  | 137 |
Private Equity and Other(i) | — |  |  | — |  |  |  |  | 242 |  |  | 242 |  |  | — |  |  | — |  |  |  |  | 258 |  |  | 258 |
DTE Electric Total | $ | 226 |  |  | $ | 298 |  |  |  |  | $ | 528 |  |  | $ | 1,052 |  |  | $ | 331 |  |  | $ | 273 |  |  |  |  | $ | 751 |  |  | $ | 1,355 |
_______________________________________ (a)For a description of levels within the fair value hierarchy see Note 12 to the Consolidated Financial Statements, "Fair Value." (b)Amounts represent assets valued at NAV as a practical expedient for fair value. (c)This category predominantly represents certain short-term fixed income securities and money market investments that are managed in separate accounts or commingled funds. Pricing for investments in this category is obtained from quoted prices in actively traded markets. (d)This category represents portfolios of large, medium and small capitalization domestic equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (e)This category primarily consists of portfolios of non-U.S. developed and emerging market equities. Investments in this category include exchange-traded securities for which unadjusted quoted prices can be obtained and exchange-traded securities held in a commingled fund classified as NAV assets. (f)This category includes U.S. Treasuries, bonds and other governmental debt. Pricing for investments in this category is obtained from quoted prices in actively traded markets and quotations from broker or pricing services. (g)This category primarily consists of corporate bonds from diversified industries, bank loans, and mortgage backed securities. Pricing for investments in this category is obtained from quotations from broker or pricing services. Non-exchange traded securities and exchange-traded securities held in commingled funds are classified as NAV assets. (h)This category utilizes a diversified group of strategies that attempt to capture uncorrelated sources of return and includes publicly traded mutual funds, insurance-linked and asset-backed securities, commingled funds and limited partnership funds. Pricing for mutual funds in this category is obtained from quoted prices in actively traded markets. Pricing for insurance-linked and asset-backed securities is obtained from quotations from broker or pricing services. Commingled funds and limited partnership funds are classified as NAV assets. (i)This category includes a diversified group of funds and strategies that primarily invests in private equity partnerships. This category also includes investments in private real estate and private debt. All investments in this category are classified as NAV assets.
Schedule of Accumulated Benefit Obligations in Excess of Plan Assets | The following table reflects other postretirement benefit plans with accumulated postretirement benefit obligations in excess of plan assets as of December 31:
| DTE Energy |  | DTE Electric
| 2022 |  | 2021 |  | 2022 |  | 2021
| (In millions)
Accumulated postretirement benefit obligation | $ | 625 |  |  | $ | 822 |  |  | $ | 591 |  |  | $ | 775 |
Fair value of plan assets | 338 |  |  | 463 |  |  | 316 |  |  | 435 |
Accumulated postretirement benefit obligation in excess of plan assets | $ | 287 |  |  | $ | 359 |  |  | $ | 275 |  |  | $ | 340 |
Retiree healthcare plan (VEBA) |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |
Schedule of VEBA Contributions | The following table provides contributions to the VEBA in:
| 2022 |  | 2021 |  | 2020
| (In millions)
DTE Energy | $ | 16 |  |  | $ | 18 |  |  | $ | 15 |
DTE Electric | $ | 7 |  |  | $ | 8 |  |  | $ | 7 |

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Tabular disclosure of defined contribution pension plans or defined contribution other postretirement plans, separately for pension plans and other postretirement benefit plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 70 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=49170846&loc=d3e28014-114942 + Details
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- Definition Tabular disclosure of the major categories of plan assets of pension plans and/or other employee benefit plans. This information may include, but is not limited to, the target allocation of plan assets, the fair value of each major category of plan assets, and the level within the fair value hierarchy in which the fair value measurements fall. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(5) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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- Definition Tabular disclosure of benefit obligation and plan assets for defined benefit pension plan with projected benefit obligation in excess of plan assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 + Details
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- Definition Tabular disclosure of the changes in plan assets and benefit obligations recognized in other comprehensive income (loss) during the period. + References No definition available. + Details
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- Definition Tabular disclosure of one or more of the entity's defined benefit pension plans or one or more other defined benefit postretirement plans, separately for pension plans and other postretirement benefit plans including the entity's schedule of fair value of plan assets for defined benefit or other postretirement plans. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 4 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2439-114920 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2410-114920 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e2417-114920 + Details
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- Definition Tabular disclosure of benefits expected to be paid by pension plans and/or other employee benefit plans in each of the next five fiscal years and in the aggregate for the five fiscal years thereafter. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
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