Consolidated Condensed Balance Sheets (Unaudited) (Parenthetical) - $ / shares	Jul. 31, 2016	Oct. 31, 2015
Statement of Financial Position [Abstract]
Preferred stock, par value (usd per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized	300,000,000	300,000,000
Preferred stock, shares issued	0	0
Common stock, par value (usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized	9,600,000,000	9,600,000,000
Common stock, shares issued	1,711,000,000	1,804,000,000
Common stock, shares outstanding	1,711,000,000	1,804,000,000