Consolidated Statements of Stockholders' Deficit - USD ($) $ in Millions	Total	Convertible Junior Preference Stock Series D [Member]	Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Treasury Stock [Member]	Noncontrolling Interest [Member]
Stockholders' Equity balance at beginning of period at Oct. 31, 2017	$ (4,574)	$ 2	$ 10	$ 2,733	$ (4,933)	$ (2,211)	$ (179)	$ 4
Net income (loss)	(5)	0	0	0	(18)	0	0	13
Total other comprehensive income	57	0	0	0	0	57	0	0
Stock-based compensation	7	0	0	7	0	0	0	0
Stock ownership programs	(3)	0	0	(10)	0	0	(13)	0
Dividends paid by subsidiaries to non-controlling interest	(14)	0	0	0	0	0	0	(14)
Stock Deferral and Issuance to Directors	(1)	0	0	(1)	0	0	0	0
Stockholders' Equity balance at end of period at Apr. 30, 2018	(4,527)	2	10	2,729	(4,951)	(2,154)	(166)	3
Stockholders' Equity balance at beginning of period at Oct. 31, 2018	(3,926)	2	10	2,731	(4,593)	(1,920)	(161)	5
Net income (loss)	(26)	0	0	0	(37)	0	0	11
Total other comprehensive income	134	0	0	0	0	134	0	0
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	(27)	0	0	0	(27)	0	0	0
Stock-based compensation	7	0	0	7	0	0	0	0
Stock ownership programs	(1)	0	0	(10)	0	0	(9)	0
Dividends paid by subsidiaries to non-controlling interest	(13)	0	0	0	0	0	0	(13)
Stockholders' Equity balance at end of period at Apr. 30, 2019	$ (3,852)	$ 2	$ 10	$ 2,728	$ (4,657)	$ (1,786)	$ (152)	$ 3