Consolidated and Combined Statements of Stockholders' Equity Statement - USD ($) shares in Thousands, $ in Millions	Total	Common Stock	Additional Paid-in Capital	Former Parent Company Investment	Retained Earnings	Accumulated Other Comprehensive Loss	Equity Attributable to the Company	Non- controlling Interests	Total Equity
Balance at Oct. 31, 2013				$ 39,683		$ (1,695)	$ 37,988	$ 387	$ 38,375
Increase (Decrease) in Stockholders' Equity
Net earnings	$ 1,648			1,648			1,648		1,648
Other comprehensive loss	(553)			0		(553)	(553)		(553)
Comprehensive income	1,095			0			1,095		1,095
Net transfers to former Parent				(2,307)			(2,307)		(2,307)
Changes in non-controlling interests								9	9
Balance at Oct. 31, 2014				39,024		(2,248)	36,776	396	37,172
Increase (Decrease) in Stockholders' Equity
Net earnings	2,461			2,461		0	2,461		2,461
Other comprehensive loss	(2,767)					(2,767)	(2,767)		(2,767)
Comprehensive income	(306)						(306)		(306)
Net transfers to former Parent				11,594			11,594		11,594
Changes in non-controlling interests								(13)	(13)
Distribution of net proceeds of Senior Notes to former Parent				(14,529)			(14,529)		(14,529)
Balance at Oct. 31, 2015	33,918			38,550		(5,015)	33,535	383	33,918
Increase (Decrease) in Stockholders' Equity
Net earnings	3,161				$ 3,161		3,161	33	3,194
Other comprehensive loss	(1,584)					(1,584)	(1,584)		(1,584)
Comprehensive income	1,577						1,577		1,610
Changes in non-controlling interests								(9)	(9)
Separation-related adjustments	(1,200)			(1,236)			(1,236)		(1,236)
Issuance of common stock and reclassification of former parent company investment (in shares)		1,803,719
Issuance of common stock and reclassification of former Parent company investment		$ 18	$ 37,296	(37,314)			0		0
Issuance of common stock in connection with employee stock plans and other (in shares)		20,374
Issuance of common stock in connection with employee stock plans and other			15				15		15
Repurchases of common stock (in shares)		(157,761)
Repurchases of common stock		$ (1)	(2,661)				(2,662)		(2,662)
Tax benefit from employee stock plans			1				1		1
Cash dividends declared					(379)		(379)		(379)
Stock-based compensation expense			597				597		597
MphasiS divestiture								(337)	(337)
Balance at Oct. 31, 2016	$ 31,518	$ 17	$ 35,248	$ 0	$ 2,782	$ (6,599)	$ 31,448	$ 70	$ 31,518
Balance (in shares) at Oct. 31, 2016	1,666,000	1,666,332