Earnings Per Share - Basic and Diluted Earnings Per Share Computations (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended		9 Months Ended
	Aug. 31, 2022	Aug. 31, 2021	Aug. 31, 2022	Aug. 31, 2021
Earnings Per Share [Abstract]
Net income (loss) for basic and diluted earnings per share	$ (770)	$ (2,836)	$ (4,495)	$ (6,881)
Weighted-average shares outstanding (in shares)	1,185	1,133,000	1,154	1,120,000
Dilutive effect of equity plans (in shares)	0	0	0	0
Diluted weighted-average shares outstanding (in shares)	1,185	1,133,000	1,154	1,120,000
Basic earnings per share (in dollars per share)	$ (0.65)	$ (2.50)	$ (3.89)	$ (6.14)
Diluted earnings per share (in dollars per share)	$ (0.65)	$ (2.50)	$ (3.89)	$ (6.14)