Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Offsetting Derivative Instruments (Details) - USD ($) $ in Millions	Aug. 31, 2019	Nov. 30, 2018
Assets
Gross Amounts	$ 38
Gross Amounts Offset in the Balance Sheet	(1)	$ 0
Total Net Amounts Presented in the Balance Sheet	37
Gross Amounts not Offset in the Balance Sheet	(1)
Net Amounts	36	0
Liabilities
Gross Amounts	26	29
Gross Amounts Offset in the Balance Sheet	(1)	0
Total Net Amounts Presented in the Balance Sheet	25	29
Gross Amounts not Offset in the Balance Sheet	(1)
Net Amounts	$ 24	$ 29

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