DEBT - Short-Term Borrowings (Details) - USD ($) $ in Millions	Dec. 31, 2018	Dec. 31, 2017
Short-Term Borrowings:
Commercial paper	$ 13,238	$ 9,940
Other borrowings	19,108	34,512
Total short-term borrowings	32,346	44,452
Collateralized short-term advances from Federal Home Loan Bank	$ 9,500	$ 23,800
Commercial paper
Short-Term Borrowings:
Weighted average coupon	1.95%	1.28%
Other borrowings
Short-Term Borrowings:
Weighted average coupon	2.99%	1.62%

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 advances from Federal Home Loan Bank (FHLBank) maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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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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Weighted average interest rate of short-term debt outstanding calculated at point in time.

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