DEBT - Short-Term Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2019	Dec. 31, 2018
Short-Term Borrowings:
Commercial paper	$ 16,476	$ 13,238
Other borrowings	28,573	19,108
Total short-term borrowings	45,049	32,346
Collateralized short-term advances from Federal Home Loan Bank	$ 17,600	$ 9,500
Commercial paper
Short-Term Borrowings:
Weighted average coupon	1.98%	1.95%
Other borrowings
Short-Term Borrowings:
Weighted average coupon	2.57%	2.99%
Bank
Short-Term Borrowings:
Commercial paper	$ 10,155	$ 13,238
Broker-dealer
Short-Term Borrowings:
Commercial paper	$ 6,321	$ 0

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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