DEBT - Short-Term Borrowings (Details) - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Short-term Debt [Line Items]
Commercial paper	$ 17,165	$ 20,222
Other borrowings	14,745	17,235
Total short-term borrowings	31,910	37,457
Collateralized short-term advances from Federal Home Loan Bank	4,000	8,000
Bank
Short-term Debt [Line Items]
Commercial paper	11,206	11,116
Broker-dealer and other
Short-term Debt [Line Items]
Commercial paper	$ 5,959	$ 9,106

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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Amount of advance from Federal Home Loan Bank (FHLBank) maturing in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount of borrowings classified as other, maturing within one year or the normal operating cycle, if longer.

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Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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