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Significant Accounting Policies (Tables)
 6 Months Ended
Jun. 30, 2024
Accounting Policies [Abstract]  
Schedule of Other Income
The following is a summary of DTE Energy's Other income:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
(In millions)
Allowance for equity funds used during construction$20 $9 $38 $18 
Equity earnings of equity method investees32 — 24 4 
Contract services6 7 13 13 
Investment income(a)
3 4 9 9 
Other4 11 8 13 
$65 $31 $92 $57 
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(a)Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations.
The following is a summary of DTE Electric's Other income:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
(In millions)
Allowance for equity funds used during construction$19 $8 $37 $17 
Contract services7 6 13 12 
Investment income(a)
2 3 7 6 
Other4 3 7 5 
$32 $20 $64 $40 
_______________________________________
(a)Investment losses are recorded separately to Other expenses on the Consolidated Statements of Operations.
Schedule of Effective Income Tax Rate Reconciliation The tables below summarize how the Registrants' effective income tax rates have varied from the statutory federal income tax rate:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
DTE Energy
Statutory federal income tax rate21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State and local income taxes, net of federal benefit3.9 4.4 4.0 4.4 
Production tax credits(7.7)(4.4)(8.2)(5.6)
TCJA regulatory liability amortization(4.2)(3.1)(4.5)(3.8)
Investment tax credits(2.7)(1.4)(2.9)(2.0)
State tax audit settlement, net of federal benefit— (1.8)— (0.6)
Other(0.2)(0.3)(1.2)(1.9)
Effective income tax rate10.1 %14.4 %8.2 %11.5 %
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
DTE Electric
Statutory federal income tax rate21.0 %21.0 %21.0 %21.0 %
Increase (decrease) due to:
State and local income taxes, net of federal benefit5.3 5.7 5.3 5.7 
Production tax credits(9.2)(8.2)(9.6)(7.8)
TCJA regulatory liability amortization(4.4)(5.3)(4.6)(5.0)
AFUDC equity(1.2)(0.5)(1.3)(0.4)
State tax audit settlement, net of federal benefit— (2.1)— (1.3)
Other0.4 (0.9)0.2 (0.8)
Effective income tax rate11.9 %9.7 %11.0 %11.4 %
Schedule of Financing Receivables Classified by Internal Grade of Credit Risk
The following represents the Registrants' financing receivables by year of origination, classified by internal grade of credit risk, including current year-to-date gross write-offs, if any. The related credit quality indicators and risk ratings utilized to develop the internal grades have been updated through June 30, 2024.
DTE EnergyDTE Electric
Year of Origination
202420232022 and PriorTotal2024 and Prior
(In millions)
Notes receivable
Internal grade 1$— $1 $4 $5 $— 
Internal grade 2404 7 25 436 1 
Total notes receivable(a)
$404 $8 $29 $441 $1 
Net investment in leases
Internal grade 1$— $— $36 $36 $— 
Internal grade 2138 — 244 382 — 
Total net investment in leases(a)
$138 $— $280 $418 $— 
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(a)For DTE Energy and DTE Electric, the current portion is included in Current Assets — Other on the respective Consolidated Statements of Financial Position. For DTE Electric, the noncurrent portion is included in Other Assets — Other.
Schedule of Roll-Forward of Activity for Financing Receivables Credit Loss Reserves
The following tables present a roll-forward of the activity for the Registrants' financing receivables credit loss reserves:
DTE EnergyDTE Electric
Trade accounts receivableOther receivablesTotalTrade and other accounts receivable
(In millions)
Beginning reserve balance, January 1, 2024$62 $1 $63 $41 
Current period provision38 — 38 20 
Write-offs charged against allowance(50)— (50)(34)
Recoveries of amounts previously written off23 — 23 15 
Ending reserve balance, June 30, 2024$73 $1 $74 $42 
DTE EnergyDTE Electric
Trade accounts receivableOther receivablesTotalTrade and other accounts receivable
(In millions)
Beginning reserve balance, January 1, 2023$78 $1 $79 $49 
Current period provision52 — 52 36 
Write-offs charged against allowance(112)— (112)(72)
Recoveries of amounts previously written off44 — 44 28 
Ending reserve balance, December 31, 2023$62 $1 $63 $41 
Schedule of Uncollectible Expense
Uncollectible expense for the Registrants is primarily comprised of the current period provision for allowance for doubtful accounts and is summarized as follows:
Three Months Ended June 30,Six Months Ended June 30,
2024202320242023
(In millions)
DTE Energy$17 $13 $38 $35 
DTE Electric$11 $9 $21 $17