Other Short-Term Borrowings - Components of Other Short-Term Borrowings (Details) - USD ($) $ in Millions	Sep. 30, 2019	Dec. 31, 2018
Short Term Debt
FHLB advances	$ 2,850	$ 0
Derivative collateral	602	271
Securities sold under repurchase agreements	594	302
Total other short-term borrowings	$ 4,046	$ 573

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- Definition

Amount of obligation to return cash collateral under master netting arrangements that have not been offset against derivative assets.

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Amount of advances from the Federal Home Loan Bank (FHLB).

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- Definition

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

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Amount, after the effects of master netting arrangements, of funds outstanding borrowed in the form of a security repurchase agreement between the entity and another party for the sale and repurchase of identical or substantially the same securities at a date certain for a specified price. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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