FUNDS RECEIVABLE AND CUSTOMER ACCOUNTS AND INVESTMENTS - Assets Underlying Funds Receivable and Customer Accounts, Short-term Investments, and Long-term Investments (Details) - USD ($) $ in Millions	Sep. 30, 2022	Dec. 31, 2021
Funds receivable and customer accounts:
Total funds receivable and customer accounts	$ 34,824	$ 36,141
Short-term investments:
Time deposits	383	590
Available-for-sale debt securities	3,786	3,604
Restricted cash	21	109
Short-term Investments	4,190	4,303
Long-term investments:
Time deposits	55	45
Available-for-sale debt securities	2,912	3,545
Strategic investments	2,248	3,207
Long-term Investments	5,215	6,797
Cash and cash equivalents
Funds receivable and customer accounts:
Total funds receivable and customer accounts	10,044	12,723
Time deposits
Funds receivable and customer accounts:
Total funds receivable and customer accounts	39	334
Available-for-sale debt securities
Funds receivable and customer accounts:
Total funds receivable and customer accounts	18,916	18,336
Funds receivable
Funds receivable and customer accounts:
Total funds receivable and customer accounts	$ 5,825	$ 4,748

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