Debt Instrument, Covenant Compliance, Required Asset Coverage Ratio

No definition available.

Name:	bcred_DebtInstrumentCovenantComplianceRequiredAssetCoverageRatio
Namespace Prefix:	bcred_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line Of Credit Facility, Combined Revolving Debt Amount, Multiplier

+ References

No definition available.

+ Details

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Namespace Prefix:	bcred_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

- Definition

Line of Credit Facility, Maximum Borrowing Capacity, Accordion Feature

+ References

No definition available.

+ Details

Name:	bcred_LineOfCreditFacilityMaximumBorrowingCapacityAccordionFeature
Namespace Prefix:	bcred_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

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

+ References

No definition available.

+ Details

Name:	us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix:	us-gaap_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	duration

- 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

Name:	us-gaap_DebtInstrumentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.19(b),22(b))
-URI https://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

+ Details

Name:	us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

The fee, expressed as a percentage of the line of credit facility, for available but unused credit capacity under the credit facility.

+ References

No definition available.

+ Details

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

- Details

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Namespace Prefix:
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Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

Name:	us-gaap_DebtInstrumentAxis=bcred_SeniorSecuredCreditFacilityMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CreditFacilityAxis=us-gaap_LetterOfCreditMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DebtInstrumentAxis=bcred_ForeignCurrencyCommitmentsMember
Namespace Prefix:
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- Details

Name:	us-gaap_DebtInstrumentAxis=bcred_AmendedAndRestatedSeniorSecuredCreditFacilityMember
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Borrowings - Revolving Credit Facility (Details) - Line of Credit	May 18, 2021 USD ($)	Sep. 30, 2022 USD ($)	May 06, 2022 USD ($)	Dec. 31, 2021 USD ($)	Nov. 16, 2021 USD ($)	Nov. 05, 2021 USD ($)	Sep. 07, 2021 USD ($)
Revolving Credit Facility
Debt Instrument [Line Items]
Unused capacity, commitment fee percentage	0.375%
Asset coverage ratio	1.50
Revolving Credit Facility \| Scenario 1
Debt Instrument [Line Items]
Applicable margin rate	0.75%
Debt multiplier	1.6
Revolving Credit Facility \| Scenario 2
Debt Instrument [Line Items]
Applicable margin rate	0.875%
Debt multiplier	1.6
Revolving Credit Facility \| Scenario 3
Debt Instrument [Line Items]
Applicable margin rate	1.75%
Debt multiplier	1.6
Revolving Credit Facility \| Scenario 4
Debt Instrument [Line Items]
Applicable margin rate	1.875%
Debt multiplier	1.6
Revolving Credit Facility \| Scenario 5
Debt Instrument [Line Items]
Applicable margin rate	1.8693%
Debt multiplier	1.6
Revolving Credit Facility \| Scenario 6
Debt Instrument [Line Items]
Applicable margin rate	1.9943%
Debt multiplier	1.6
Fed Funds \| Revolving Credit Facility
Debt Instrument [Line Items]
Applicable margin rate	0.50%
LIBOR \| Revolving Credit Facility
Debt Instrument [Line Items]
Applicable margin rate	1.00%
Revolving Credit Facility \| Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate principal amount	$ 3,000,000,000	$ 5,150,000,000		$ 3,250,000,000
Accordion feature	5,000,000,000
Revolving Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Aggregate principal amount	100,000,000
Foreign Currency Commitments \| Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate principal amount	$ 1,400,000,000		$ 5,200,000,000		$ 3,300,000,000	$ 3,000,000,000	$ 1,500,000,000
A&R Agremeent \| Revolving Credit Facility
Debt Instrument [Line Items]
Aggregate principal amount			5,200,000,000
Accordion feature			$ 7,000,000,000