INVESTMENTS AND FAIR VALUE MEASUREMENT - Schedule of Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Assets
Deposits with clearing organizations	$ 464	$ 338
Asset related to user cryptocurrencies safeguarding obligation	19,456	14,708
Liabilities
User cryptocurrencies safeguarding obligation	19,456	14,708
Fair Value, Recurring
Assets
Total financial assets	22,512	17,028
Liabilities
Total financial liabilities	21,657	16,300
Fair Value, Recurring \| U.S. Treasury securities
Assets
Deposits with clearing organizations		50
Fair Value, Recurring \| Stablecoin
Assets
Other current assets	21	20
Fair Value, Recurring \| Equity securities - securities owned
Assets
Other current assets	14	10
Fair Value, Recurring \| Money market funds - escrow account
Assets
Other current assets	2	2
Fair Value, Recurring \| Asset related to user cryptocurrencies safeguarding obligation
Assets
Asset related to user cryptocurrencies safeguarding obligation	19,456	14,708
Fair Value, Recurring \| User-held fractional shares
Assets
Other current assets	2,201	1,592
Fair Value, Recurring \| User cryptocurrencies safeguarding obligation
Liabilities
User cryptocurrencies safeguarding obligation	19,456	14,708
Fair Value, Recurring \| Fractional shares repurchase obligations
Liabilities
Fractional shares repurchase obligations	2,201	1,592
Fair Value, Recurring \| Time deposits
Assets
Cash equivalents	750	500
Fair Value, Recurring \| Money market funds
Assets
Cash equivalents	60	146
Fair Value, Recurring \| U.S. Treasury securities
Assets
Cash equivalents	8
Fair Value, Recurring \| Level 1
Assets
Total financial assets	2,306	1,820
Liabilities
Total financial liabilities	2,201	1,592
Fair Value, Recurring \| Level 1 \| U.S. Treasury securities
Assets
Deposits with clearing organizations		50
Fair Value, Recurring \| Level 1 \| Stablecoin
Assets
Other current assets	21	20
Fair Value, Recurring \| Level 1 \| Equity securities - securities owned
Assets
Other current assets	14	10
Fair Value, Recurring \| Level 1 \| Money market funds - escrow account
Assets
Other current assets	2	2
Fair Value, Recurring \| Level 1 \| Asset related to user cryptocurrencies safeguarding obligation
Assets
Asset related to user cryptocurrencies safeguarding obligation	0	0
Fair Value, Recurring \| Level 1 \| User-held fractional shares
Assets
Other current assets	2,201	1,592
Fair Value, Recurring \| Level 1 \| User cryptocurrencies safeguarding obligation
Liabilities
User cryptocurrencies safeguarding obligation	0	0
Fair Value, Recurring \| Level 1 \| Fractional shares repurchase obligations
Liabilities
Fractional shares repurchase obligations	2,201	1,592
Fair Value, Recurring \| Level 1 \| Time deposits
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Money market funds
Assets
Cash equivalents	60	146
Fair Value, Recurring \| Level 1 \| U.S. Treasury securities
Assets
Cash equivalents	8
Fair Value, Recurring \| Level 2
Assets
Total financial assets	20,206	15,208
Liabilities
Total financial liabilities	19,456	14,708
Fair Value, Recurring \| Level 2 \| U.S. Treasury securities
Assets
Deposits with clearing organizations		0
Fair Value, Recurring \| Level 2 \| Stablecoin
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 2 \| Equity securities - securities owned
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 2 \| Money market funds - escrow account
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 2 \| Asset related to user cryptocurrencies safeguarding obligation
Assets
Asset related to user cryptocurrencies safeguarding obligation	19,456	14,708
Fair Value, Recurring \| Level 2 \| User-held fractional shares
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 2 \| User cryptocurrencies safeguarding obligation
Liabilities
User cryptocurrencies safeguarding obligation	19,456	14,708
Fair Value, Recurring \| Level 2 \| Fractional shares repurchase obligations
Liabilities
Fractional shares repurchase obligations	0	0
Fair Value, Recurring \| Level 2 \| Time deposits
Assets
Cash equivalents	750	500
Fair Value, Recurring \| Level 2 \| Money market funds
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 2 \| U.S. Treasury securities
Assets
Cash equivalents	0
Fair Value, Recurring \| Level 3
Assets
Total financial assets	0	0
Liabilities
Total financial liabilities	0	0
Fair Value, Recurring \| Level 3 \| U.S. Treasury securities
Assets
Deposits with clearing organizations		0
Fair Value, Recurring \| Level 3 \| Stablecoin
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 3 \| Equity securities - securities owned
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 3 \| Money market funds - escrow account
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 3 \| Asset related to user cryptocurrencies safeguarding obligation
Assets
Asset related to user cryptocurrencies safeguarding obligation	0	0
Fair Value, Recurring \| Level 3 \| User-held fractional shares
Assets
Other current assets	0	0
Fair Value, Recurring \| Level 3 \| User cryptocurrencies safeguarding obligation
Liabilities
User cryptocurrencies safeguarding obligation	0	0
Fair Value, Recurring \| Level 3 \| Fractional shares repurchase obligations
Liabilities
Fractional shares repurchase obligations	0	0
Fair Value, Recurring \| Level 3 \| Time deposits
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Money market funds
Assets
Cash equivalents	0	$ 0
Fair Value, Recurring \| Level 3 \| U.S. Treasury securities
Assets
Cash equivalents	$ 0

Fair value of asset to safeguard crypto-asset held for platform user.

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-Name Staff Accounting Bulletin (SAB)
-Number Topic 5
-Section FF
-Paragraph Question 1
-Publisher SEC

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 405
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