Financial Instruments - Gross Notional FV and Offsetting (Details) - USD ($) $ in Millions	Apr. 30, 2017	Oct. 31, 2016
Derivative assets
Gross Amount Recognized	$ 435	$ 720
Net Amount Presented	435	720
Gross Amounts Not Offset
Derivatives	247	207
Financial Collateral	141	465
Net Amount	47	48
Derivative liabilities
Gross Amount Recognized	387	219
Net Amount Presented	387	219
Gross Amounts Not Offset
Derivatives	247	207
Financial Collateral	177	10
Net Amount	(37)	$ 2
Financial Collateral	226
Cash collateral	$ 49

Derivative, Collateral, Right to Reclaim Cash, Gross

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Carrying amount as of the balance sheet date of cash collateral held for borrowed securities, for which the cash is restricted as to withdrawal or usage.

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Fair value of liability associated with financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset.

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