Consolidated Statements of Shareholders' Equity - USD ($) $ in Millions	Total	Common stock	Ordinary shares	Additional paid-in capital	Retained earnings	AOCI	Treasury stock
Beginning balance at Nov. 30, 2019	$ 25,365	$ 7	$ 358	$ 8,807	$ 26,653	$ (2,066)	$ (8,394)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(8,014)				(8,014)
Other comprehensive income (loss)	627					627
Cash dividends declared ($0.50 per share)	(342)				(342)
Issuance of common stock related to the repurchase of Convertible Notes	778	1		777
Repurchase of Convertible Notes	1,052	1		1,051
Purchases of treasury stock under the Repurchase Program and other	36		2	44			(10)
Ending balance at Aug. 31, 2020	19,503	8	361	10,680	18,297	(1,439)	(8,404)
Beginning balance at May. 31, 2020	20,840	7	360	9,683	21,155	(1,962)	(8,404)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2,858)				(2,858)
Other comprehensive income (loss)	524					524
Issuance of common stock related to the repurchase of Convertible Notes	222			222
Repurchase of Convertible Notes	766	1		765
Other	9			9
Ending balance at Aug. 31, 2020	19,503	8	361	10,680	18,297	(1,439)	(8,404)
Beginning balance at Nov. 30, 2020	20,555	11	361	13,948	16,075	(1,436)	(8,404)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(6,881)				(6,881)
Other comprehensive income (loss)	87					87
Issuance of common stock related to the repurchase of Convertible Notes	1,003			1,003
Conversion of Convertible Notes	2			2
Purchases and issuances under the Stock Swap program	10			105			(95)
Other	88			88
Ending balance at Aug. 31, 2021	14,863	11	361	15,146	9,194	(1,349)	(8,500)
Beginning balance at May. 31, 2021	17,876	11	361	15,005	12,030	(1,126)	(8,404)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(2,836)				(2,836)
Other comprehensive income (loss)	(223)					(223)
Issuance of common stock related to the repurchase of Convertible Notes	7			7
Conversion of Convertible Notes	2			2
Purchases and issuances under the Stock Swap program	10			105			(95)
Other	28			28
Ending balance at Aug. 31, 2021	$ 14,863	$ 11	$ 361	$ 15,146	$ 9,194	$ (1,349)	$ (8,500)