Fair Value Measurements, Derivative Instruments and Hedging Activities and Financial Risks - Estimated Carrying and Fair Values of Financial Instrument Assets and Liabilities Not Measured at Fair Value on Recurring Basis (Details) - USD ($) $ in Millions	Aug. 31, 2021	Nov. 30, 2020
Carrying Value
Liabilities
Total	$ 31,964	$ 27,581
Carrying Value | Fixed rate debt
Liabilities
Debt	19,812	15,547
Carrying Value | Floating rate debt
Liabilities
Debt	12,152	12,034
Fair Value | Level 1
Liabilities
Total	0	0
Fair Value | Level 1 | Fixed rate debt
Liabilities
Debt	0	0
Fair Value | Level 1 | Floating rate debt
Liabilities
Debt	0	0
Fair Value | Level 2
Liabilities
Total	31,902	27,670
Fair Value | Level 2 | Fixed rate debt
Liabilities
Debt	20,470	16,258
Fair Value | Level 2 | Floating rate debt
Liabilities
Debt	11,432	11,412
Fair Value | Level 3
Liabilities
Total	0	0
Fair Value | Level 3 | Fixed rate debt
Liabilities
Debt	0	0
Fair Value | Level 3 | Floating rate debt
Liabilities
Debt	$ 0	$ 0