NATURE OF OPERATIONS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Supplemental Information - Statement of Cash Flows (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Income taxes paid	$ 5	$ 18	$ 16
Income tax refunds	1	158	44
Interest paid	294	387	583
Property and equipment
Non-cash transaction property and equipment	$ 5	5	5
Shares received in exchange for equivalent value of advertising spots		$ 3	6
Equipment
Property and equipment
Receipt of equipment with a fair value			$ 58

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