Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Reconciliation of Changes in Carrying Amounts of Intangible Assets Not Subject to Amortization (Details) $ in Millions	9 Months Ended
	Aug. 31, 2019 USD ($)
Indefinite-lived Intangible Assets [Roll Forward]
At November 30, 2018	$ 1,169
Foreign currency translation adjustment	(10)
At August 31, 2019	1,159
NAA Segment
Indefinite-lived Intangible Assets [Roll Forward]
At November 30, 2018	927
Foreign currency translation adjustment	0
At August 31, 2019	927
EA Segment
Indefinite-lived Intangible Assets [Roll Forward]
At November 30, 2018	242
Foreign currency translation adjustment	(10)
At August 31, 2019	$ 232