Earnings Per Share - Basic and Diluted Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Feb. 28, 2022	Feb. 28, 2021
Earnings Per Share [Abstract]
Net income (loss) for basic and diluted earnings per share	$ (1,891)	$ (1,973)
Weighted-average shares outstanding (in shares)	1,137	1,095
Dilutive effect of equity plans (in shares)	0	0
Diluted weighted-average shares outstanding (in shares)	1,137	1,095
Basic earnings per share (in dollars per share)	$ (1.66)	$ (1.80)
Diluted earnings per share (in dollars per share)	$ (1.66)	$ (1.80)