Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Derivatives Qualifying and Designated as Hedging Instruments Recognized in Other Comprehensive Income (Details) - Designated as hedging instruments - USD ($) $ in Millions	3 Months Ended
	Feb. 28, 2021	Feb. 29, 2020
Cross currency swaps, included component
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in AOCI, net investment hedges	$ 0	$ (2)
Cross currency swaps, excluded component
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in AOCI, net investment hedges	0	42
Foreign currency zero cost collars
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in AOCI, cash flow hedges	0	(1)
Gains (losses) reclassified from AOCI, cash flow hedges	1	0
Foreign currency forwards
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in AOCI, cash flow hedges	0	14
Interest rate swaps
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized in AOCI, cash flow hedges	1	1
Gains (losses) reclassified from AOCI, cash flow hedges	(1)	(2)
Cross currency swaps, interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Gains (losses) recognized on derivative instruments (amount excluded from effectiveness testing - net investment hedges)	$ 0	$ 10