ACCOUNTS RECEIVABLE AND OTHER FINANCIAL ASSETS - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2023	Dec. 31, 2022
Accounts, Notes, Loans and Financing Receivable [Line Items]
Receivables from customers	$ 2,000	$ 1,500
Receivables from payment processors and networks	832	730
Prepaid expenses, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prepayments to customers	6	29
Other assets, net
Accounts, Notes, Loans and Financing Receivable [Line Items]
Prepayments to customers	$ 22	$ 5