Consolidated Statements of Stockholders' Equity (USD $) In Millions, except Share data in Thousands, unless otherwise specified	Total	Total HP Stockholders' Equity	Common Stock	Additional Paid-in Capital	Retained Earnings	Accumulated Other Comprehensive (Loss) Income	Non-controlling Interests	Comprehensive Income (loss)
Balance at Oct. 31, 2010	$ 40,781	$ 40,449	$ 22	$ 11,569	$ 32,695	$ (3,837)	$ 332
Balance (in shares) at Oct. 31, 2010			2,203,898
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	7,074	7,074			7,074			7,074
Other comprehensive income (loss)	339	339				339		339
Comprehensive income (loss)	7,413	7,413						7,413
Issuance of common stock in connection with employee stock plans and other	752	752	1	751
Issuance of common stock in connection with employee stock plans and other (in shares)			45,461
Repurchases of common stock	(9,968)	(9,968)	(3)	(6,296)	(3,669)
Repurchases of common stock (in shares)	(259,000)		(258,853)
Tax benefits (deficiency) from employee stock plans	128	128		128
Cash dividends declared	(834)	(834)			(834)
Stock-based compensation expense	685	685		685
Changes in non-controlling interest	47						47
Balance at Oct. 31, 2011	39,004	38,625	20	6,837	35,266	(3,498)	379
Balance (in shares) at Oct. 31, 2011			1,990,506
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	(12,650)	(12,650)			(12,650)			(12,650)
Other comprehensive income (loss)	(2,061)	(2,061)				(2,061)		(2,061)
Comprehensive income (loss)	(14,711)	(14,711)						(14,711)
Issuance of common stock in connection with employee stock plans and other	683	683		682	1
Issuance of common stock in connection with employee stock plans and other (in shares)			39,068
Repurchases of common stock	(1,626)	(1,626)		(1,525)	(101)
Repurchases of common stock (in shares)	(67,000)		(66,736)
Tax benefits (deficiency) from employee stock plans	(175)	(175)		(175)
Cash dividends declared	(995)	(995)			(995)
Stock-based compensation expense	635	635		635
Changes in non-controlling interest	18						18
Balance at Oct. 31, 2012	22,833	22,436	20	6,454	21,521	(5,559)	397
Balance (in shares) at Oct. 31, 2012	1,963,000		1,962,838
Increase (Decrease) in Stockholders' Equity
Net earnings (loss)	5,113	5,113			5,113			5,113
Other comprehensive income (loss)	1,781	1,781				1,781		1,781
Comprehensive income (loss)	6,894	6,894						6,894
Issuance of common stock in connection with employee stock plans and other	208	208		210	(2)
Issuance of common stock in connection with employee stock plans and other (in shares)			22,950
Repurchases of common stock	(1,546)	(1,546)	(1)	(1,550)	5
Repurchases of common stock (in shares)	(77,000)		(77,905)
Tax benefits (deficiency) from employee stock plans	(149)	(149)		(149)
Cash dividends declared	(1,074)	(1,074)			(1,074)
Stock-based compensation expense	500	500		500
Changes in non-controlling interest	(10)						(10)
Balance at Oct. 31, 2013	$ 27,656	$ 27,269	$ 19	$ 5,465	$ 25,563	$ (3,778)	$ 387
Balance (in shares) at Oct. 31, 2013	1,908,000		1,907,883