Borrowings (Details) - USD ($) $ in Millions	Apr. 30, 2016	Nov. 30, 2015	Oct. 31, 2015
Notes Payable and Short-Term Borrowings
Current portion of long-term debt	$ 29		$ 2,160
Amount outstanding	$ 64		$ 2,194
Current portion of long-term debt, weighted average interest rate (as a percent)	4.90%		3.30%
U.S. Dollar Global Notes
Notes Payable and Short-Term Borrowings
Principal amount of debt redeemed and repaid		$ 2,100
Obligation related to notes payable to banks, lines of credit, uncommitted line of credit and other debt
Notes Payable and Short-Term Borrowings
Amount outstanding	$ 35		$ 34
Weighted average interest rate (as a percent)	2.30%		4.70%