Debt, Accrued and Unpaid Interest

No definition available.

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Period Type:	instant

- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

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Balance Type:	credit
Period Type:	instant

- Definition

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

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+ Details

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Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

+ Details

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Period Type:	instant

- 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

Amount of the required periodic payments applied to principal.

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Balance Type:	debit
Period Type:	duration

- Definition

Percentage price of original principal amount of debt at which debt can be redeemed by the issuer.

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- Definition

Amount, after accumulated amortization, of debt premium.

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- Definition

The cash outflow for a long-term debt where the holder has highest claim on the entity's asset in case of bankruptcy or liquidation during the period.

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Balance Type:	credit
Period Type:	duration

- Definition

Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Short-term Borrowings and Long-term Debt - Debt Repayments and Redemptions (Details) - USD ($) $ in Millions			1 Months Ended	12 Months Ended
	Mar. 31, 2022	Jan. 31, 2022	Mar. 31, 2022	Dec. 31, 2022	Sep. 30, 2022
Debt Instrument [Line Items]
Principal payments				$ 220
Senior Notes \| CERC Corp \| CERC Senior Notes Floating Rate due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread (as a percent)				0.50%
General Mortgage Bonds \| Houston Electric
Debt Instrument [Line Items]
Principal amount of debt issued				$ 1,600
Long-term Debt
Debt Instrument [Line Items]
Principal amount of debt issued				1,530
Long-term Debt \| CERC Corp
Debt Instrument [Line Items]
Principal amount of debt issued				425
Long-term Debt \| Houston Electric
Debt Instrument [Line Items]
Principal amount of debt issued				500
Long-term Debt \| Senior Notes \| CNP Senior Note 3.85% Due 2024
Debt Instrument [Line Items]
Principal amount of debt issued				$ 250
Debt instrument interest rate (as a percent)				3.85%
Debt instrument, redemption price (as a percent)	100.00%
Debt, accrued and unpaid interest					$ 2
Debt instrument, unamortized premium					7
Repayments of senior debt			$ 260
Write off of deferred debt issuance cost			1
Long-term Debt \| Senior Notes \| CNP Senior Notes 4.25% Due 2028
Debt Instrument [Line Items]
Principal amount of debt issued				$ 350	350
Debt instrument interest rate (as a percent)				4.25%
Outstanding debt balance					500
Debt instrument, redemption price (as a percent)	100.00%
Debt, accrued and unpaid interest					6
Debt instrument, unamortized premium					34
Repayments of senior debt	$ 393
Write off of deferred debt issuance cost	$ 3
Long-term Debt \| Senior Notes \| CERC Corp \| CERC Senior Notes Floating Rate due 2023
Debt Instrument [Line Items]
Principal amount of debt issued				$ 425
Outstanding debt balance		$ 1,000
Debt instrument, redemption price (as a percent)		100.00%
Long-term Debt \| General Mortgage Bonds \| Houston Electric \| General Mortgage Bonds 2.25% Due 2022
Debt Instrument [Line Items]
Principal amount of debt issued				$ 300
Debt instrument interest rate (as a percent)				2.25%
Long-term Debt \| General Mortgage Bonds \| Houston Electric \| General Mortgage Bonds 5.60% Due 2023
Debt Instrument [Line Items]
Principal amount of debt issued				$ 200
Debt instrument interest rate (as a percent)				5.60%
Outstanding debt balance					200
Debt, accrued and unpaid interest					3
Debt instrument, unamortized premium					$ 2
Repayments of senior debt			$ 205
Long-term Debt \| First Mortgage Bonds \| CNP First Mortgage Bonds 0.82% Due 2022
Debt Instrument [Line Items]
Principal amount of debt issued				$ 5
Debt instrument interest rate (as a percent)				0.82%