INVESTMENTS - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	3 Months Ended
INVESTMENTS - Narrative (Details) - USD ($) $ in Millions	Jan. 31, 2025	Mar. 31, 2026	Mar. 31, 2025	Dec. 31, 2025
Schedule of Equity Method Investments [Line Items]
Equity method investments		$ 699		$ 697
Proceeds for the formation of music catalog joint venture		$ 0	$ 601
Cutting Edge Group
Schedule of Equity Method Investments [Line Items]
Percentage of assets contributed (as a percent)	70.00%
Proceeds for the formation of music catalog joint venture	$ 601
Economic interest in the venture (as a percent)		9.00%
VIE investments
Schedule of Equity Method Investments [Line Items]
Variable interest, maximum exposure to loss		$ 477
Equity method investments		$ 467		$ 481

This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

- 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.

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