Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Foreign Currency Exchange Rate Risks (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2021	Aug. 31, 2020	Aug. 31, 2021	Aug. 31, 2020
Fair Value, Measurement Inputs, Disclosure [Line Items]
Cumulative translation gains (losses) adjustment	$ (224)	$ 519	$ 79	$ 567
Foreign currency contract commitments	8,400		8,400
Sterling-denominated
Fair Value, Measurement Inputs, Disclosure [Line Items]
Debt instrument, face amount	481		481
Cumulative translation gains (losses) adjustment	15		(35)
Euro-denominated
Fair Value, Measurement Inputs, Disclosure [Line Items]
Debt instrument, face amount	$ 9,500		$ 9,500