Segment Information (Details 2) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Apr. 30, 2014	Apr. 30, 2013	Apr. 30, 2014	Apr. 30, 2013
Segment Reporting Information
Net Revenue	$ 27,309	$ 27,582	$ 55,463	$ 55,941
Earnings (Loss) from operations	1,822	1,601	3,819	3,353
Stock based compensation expense	(130)	(107)	(300)	(291)
Amortization of intangible assets	(264)	(350)	(547)	(700)
Restructuring charges	(252)	(408)	(366)	(538)
Interest and other, net	(174)	(193)	(337)	(372)
Earnings before taxes	1,648	1,408	3,482	2,981
Operating segments
Segment Reporting Information
Net Revenue	28,213	28,489	57,220	57,565
Earnings (Loss) from operations	2,722	2,646	5,410	5,175
Elimination of intersegment net revenue and other
Segment Reporting Information
Net Revenue	(904)	(907)	(1,757)	(1,624)
Significant Reconciling Items
Segment Reporting Information
Corporate and unallocated costs and eliminations	(251)	(169)	(372)	(278)
Stock based compensation expense	(130)	(107)	(300)	(291)
Amortization of intangible assets	(264)	(350)	(547)	(700)
Restructuring charges	(252)	(408)	(366)	(538)
Acquisition-related charges	(3)	(11)	(6)	(15)
Interest and other, net	$ (174)	$ (193)	$ (337)	$ (372)