Earnings Per Share - Basic and Diluted Earnings Per Share Computation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	May 31, 2018	May 31, 2017	May 31, 2018	May 31, 2017
Earnings Per Share [Abstract]
Net income for basic and diluted earnings per share	$ 561	$ 379	$ 951	$ 730
Weighted-average shares outstanding (in shares)	714	724	715	724
Dilutive effect of equity plans (in shares)	1	3	2	3
Diluted weighted-average shares outstanding (in shares)	715	727	717	727
Basic earnings per share (in dollars per share)	$ 0.79	$ 0.52	$ 1.33	$ 1.01
Diluted earnings per share (in dollars per share)	$ 0.78	$ 0.52	$ 1.33	$ 1.00