Write off of Deferred Debt Issuance Cost and Debt Discount

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

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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.

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- Definition

Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

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Long-Term Debt (Details Textuals) - USD ($)	2 Months Ended	3 Months Ended	9 Months Ended
Long-Term Debt (Details Textuals) - USD ($)	Aug. 31, 2021	Sep. 30, 2021	Sep. 30, 2021	Sep. 30, 2020	Nov. 30, 2021	Jun. 30, 2021
Debt Instrument [Line Items]
Face amount		$ 4,100,000,000	$ 4,100,000,000
Redemption of long-term debt	$ 2,600,000,000		3,242,000,000	$ 682,000,000
Prepayment costs for extinguishment of long-term debt			361,000,000	0
Senior Notes
Debt Instrument [Line Items]
Redemption of long-term debt		2,600,000,000
Prepayment costs for extinguishment of long-term debt		361,000,000
Write off of unamortized issuance costs and discounts		15,000,000
2.07% First Mortgage Bonds maturing in 2031 \| Mortgage Bonds \| Forecast
Debt Instrument [Line Items]
Face amount					$ 60,000,000
Interest rate					2.07%
2.85% First Mortgage Bonds maturing in 2051 \| Mortgage Bonds \| Forecast
Debt Instrument [Line Items]
Face amount					$ 95,000,000
Interest rate					2.85%
DTE Electric
Debt Instrument [Line Items]
Redemption of long-term debt			321,000,000	$ 632,000,000
DTE Electric \| 1.45% Revenue Bonds maturing in 2030 \| Tax Exempt Revenue Bonds
Debt Instrument [Line Items]
Face amount		$ 82,000,000	$ 82,000,000
Interest rate		1.45%	1.45%			1.45%
DTE Electric \| 1.35% Revenue Bonds maturing in 2029 \| Tax Exempt Revenue Bonds
Debt Instrument [Line Items]
Face amount		$ 59,000,000	$ 59,000,000
Interest rate		1.35%	1.35%			1.45%