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Investments - Additional Information (Details) - USD ($) $ in Millions	9 Months Ended
	Sep. 30, 2024	Sep. 30, 2025	Dec. 31, 2024
Schedule Of Equity Method Investments [Line Items]
Equity method investments, book value		$ 770	$ 873
Cash proceeds received	$ (40)
Gain on disposal of an investment	$ 40
Goodwill [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, basis difference amount		$ 500
TV Food Network [Member]
Schedule Of Equity Method Investments [Line Items]
Ownership stake		31.30%
Equity method investments, book value		$ 752	857
Weighted average remaining useful life of assets subjects to amortization of basis difference		4 years
TV Food Network [Member] | Definite Lived Intangible Assets [Member]
Schedule Of Equity Method Investments [Line Items]
Equity method investment, basis difference amount		$ 276	$ 328
WBD TV Food Network [Member]
Schedule Of Equity Method Investments [Line Items]
Ownership stake		68.70%

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