EBP, Early Withdrawal Penalty, Percentage

No definition available.

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- Definition

EBP, Employer Contribution, Annual Fixed Contribution Matched, Percentage

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

EBP, Employer Contribution, Employer Compensation Matched, Amount

+ References

No definition available.

+ Details

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- Definition

EBP, Investment Options, Number Of Actively Managed Custom Funds

+ References

No definition available.

+ Details

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- Definition

EBP, Investment Options, Number Of Custom Target Date Funds

+ References

No definition available.

+ Details

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- Definition

EBP, Investment Options, Number Of Passively Managed Funds

+ References

No definition available.

+ Details

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- Definition

EBP, Involuntary Cash-out Limit

+ References

No definition available.

+ Details

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Balance Type:	credit
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, Account, Maximum Number Of Loans Allowed Outstanding, Non-Represented Employees

+ References

No definition available.

+ Details

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- Definition

EBP, Note Receivable From Participant, Account, Number Of Loans Allowed Outstanding, Represented Employees

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
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Period Type:	instant

- Definition

EBP, Note Receivable From Participant, Account, Number Of Loans Allowed Per Year

+ References

No definition available.

+ Details

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Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

EBP, Note Receivable From Participant, Account, Time Period For Loans Used To Reduce Maximum Borrowing Amount

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Participant Loan, Basis Spread On Variable Rate

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Profit-Sharing Match Eligibility After Retirement, Years Of Service

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

EBP, Profit-Sharing Match Eligibility, Retirement Age

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

EPB, Note Receivable From Participant, Account, Maximum Number Of Loans Allowed Outstanding

+ References

No definition available.

+ Details

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Namespace Prefix:	ceg_
Data Type:	xbrli:integerItemType
Balance Type:	na
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

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

+ Details

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Period Type:	duration

- Definition

Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

+ Details

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Period Type:	duration

- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

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Period Type:	instant

- Definition

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Period Type:	duration

- Definition

Percentage of maximum pretax annual compensation that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)), is permitted to contribute to total pretax annual compensation.

+ References

+ Details

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- Details

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- Details

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Namespace Prefix:
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Balance Type:
Period Type:

- Details

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Namespace Prefix:
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- Details

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- Details

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- Details

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Plan Description (Details) - EBP 006	12 Months Ended		36 Months Ended	59 Months Ended
Plan Description (Details) - EBP 006	Dec. 31, 2025 USD ($) fund loan year	Dec. 31, 2024 USD ($)	Dec. 31, 2025 USD ($) fund loan year	Dec. 31, 2022
EBP, Description of Plan [Line Items]
Automatic annual deferral rate, annual increase	1.00%
Employer contribution, fixed rate contribution, percentage	6.00%
Profit-sharing match eligibility, retirement age \| year	50		50
Profit-sharing match eligibility after retirement, years of service	10 years
Match contribution \| $	$ 33,176,393	$ 36,220,971
Number of custom target date funds \| fund	12		12
Number of actively managed custom funds \| fund	3		3
Number of passively managed funds \| fund	19		19
Number of loans allowed per year	1		1
Maximum number of loans allowed outstanding	5		5
Maximum number of loans allowed outstanding, non-represented employees	3		3
Maximum borrowing percentage	50.00%		50.00%
Maximum borrowing amount \| $	$ 50,000		$ 50,000
Time period for loans used to reduce maximum borrowing amount	12 months
General loan, maximum borrowing term	5 years
Primary residence, maximum borrowing term	15 years
Basis spread on rate	1.00%
Early withdrawal penalty percentage	10.00%
Cash-out limit \| $	$ 1,000
Fixed Rate Contribution
EBP, Description of Plan [Line Items]
Match percentage	60.00%
Percentage of employee eligible pay	5.00%
Employer contribution, fixed rate contribution, percentage	3.00%
Discretionary Profit Sharing Contribution
EBP, Description of Plan [Line Items]
Match percentage	60.00%
Percentage of employee eligible pay	5.00%
Employer contribution, fixed rate contribution, percentage	3.00%
Non-represented, Non-exempt Craft or Clerical Employees
EBP, Description of Plan [Line Items]
Match percentage	100.00%
Percentage of employee eligible pay	5.00%
Non-discretionary Fixed Contribution
EBP, Description of Plan [Line Items]
Percentage of employee eligible pay	3.00%		4.00%	4.00%
Minimum
EBP, Description of Plan [Line Items]
Automatic deferral rate	5.00%
Pretax, maximum annual compensation to total compensation, percentage	1.00%
Number of loans allowed outstanding, represented employees	1		1
Maximum
EBP, Description of Plan [Line Items]
Automatic deferral rate	10.00%
Pretax, maximum annual compensation to total compensation, percentage	50.00%
Number of loans allowed outstanding, represented employees	3		3