Stockholders' Equity, Comprehensive Income and Share-Based Compensation (Stock Repurchase Program) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended	9 Months Ended
Jul. 29, 2018	Jul. 30, 2017	Jul. 29, 2018	Jul. 30, 2017
Equity [Line Items]
Common stock repurchases (in shares)	25	9	84	20
Cost of stock repurchased			$ 4,533	$ 787
Average price paid per share (in dollars per share)	$ 49.31	$ 44.34	$ 53.72	$ 39.48
Treasury Stock
Equity [Line Items]
Common stock repurchases (in shares)			84	20
Cost of stock repurchased	$ 1,250	$ 375	$ 4,532	$ 787

Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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