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DEBT - Revolving Credit Facility and Commercial Paper Programs Narrative (Details)	1 Months Ended
	Jun. 30, 2025 USD ($) renewalPeriod	Sep. 30, 2025 USD ($)	Mar. 31, 2025 USD ($)	Feb. 28, 2025 USD ($)	Dec. 31, 2024 USD ($)
Line of Credit Facility [Line Items]
Total debt		$ 33,844,000,000			$ 39,527,000,000
Line of Credit
Line of Credit Facility [Line Items]
Total debt		0			0
Commercial Paper
Line of Credit Facility [Line Items]
Revolving line of credit, maximum borrowing capacity		2,000,000,000.0	$ 2,000,000,000	$ 1,000,000,000.0
Total debt		$ 0			$ 0
Revolving Credit Facility | Line of Credit
Line of Credit Facility [Line Items]
Revolving line of credit, maximum borrowing capacity	$ 4,000,000,000.0
Number of renewal periods | renewalPeriod	2
Term of renewal period	364 days
Minimum consolidated interest coverage ratio		3.00
Maximum consolidated leverage ratio		4.50
Revolver Sublimit For Standby Letters Of Credit | Line of Credit
Line of Credit Facility [Line Items]
Revolving line of credit, maximum borrowing capacity	$ 150,000,000
Additional Commitments Upon Satisfaction of Certain Conditions | Line of Credit
Line of Credit Facility [Line Items]
Revolving line of credit, maximum borrowing capacity	$ 1,000,000,000

X

- 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.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-SubTopic 10
-Topic 210
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 942
-SubTopic 210
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478546/942-210-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 20
-Name Accounting Standards Codification
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481139/470-20-50-4

+ Details

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Balance Type:	credit
Period Type:	instant

X

- 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 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S50
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480738/235-10-S50-1

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 235
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(f))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480678/235-10-S99-1

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 470
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 6
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481544/470-10-50-6

+ Details

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- 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
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Topic 210
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(19)(b))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1

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X

- Definition

Debt Instrument, Covenant, Adjusted Consolidated Leverage Ratio, Maximum

+ References

No definition available.

+ Details

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Data Type:	xbrli:pureItemType
Balance Type:	na
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X

- Definition

Debt Instrument, Covenant, Consolidated Interest Coverage Ratio, Minimum

+ References

No definition available.

+ Details

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Namespace Prefix:	wbd_
Data Type:	xbrli:pureItemType
Balance Type:	na
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X

- Definition

Line Of Credit Facility, Number Of Renewal Periods

+ References

No definition available.

+ Details

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- Definition

Line Of Credit Facility, Term Of Renewal Period

+ References

No definition available.

+ Details

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- Details

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- Details

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X

- Details

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X

- Details

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- Details

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