Derivative Instruments and Hedging Activities - Derivatives in Statements of Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 26, 2020	Apr. 28, 2019	Apr. 26, 2020	Apr. 28, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Net Sales	$ 3,957	$ 3,539	$ 8,119	$ 7,292
Cost of products sold	2,208	2,009	4,512	4,097
Research, development and engineering	550	508	1,102	1,024
General and administrative	137	113	266	223
Marketing and selling	130	133	265	264
Interest expense	61	60	120	120
Effective portion - gain (loss) recognized in AOCI		60		223
Amount of Gain or (Loss) Reclassified from AOCI into Income	(2)		(1)
Amount of Gain or (Loss) Reclassified from AOCI into Income		(2)		5
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	0		2
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		2		6
Foreign exchange contracts
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion - gain (loss) recognized in AOCI				7,292
Foreign exchange contracts | Sales
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from AOCI into Income	2		1
Amount of Gain or (Loss) Reclassified from AOCI into Income		0		0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	1		3
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		0		0
Foreign exchange contracts | Cost of products sold
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion - gain (loss) recognized in AOCI				4,097
Amount of Gain or (Loss) Reclassified from AOCI into Income	(3)		(1)
Amount of Gain or (Loss) Reclassified from AOCI into Income		(2)		10
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	(1)		(1)
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		4		9
Foreign exchange contracts | Research, development and engineering
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from AOCI into Income	(1)		0
Amount of Gain or (Loss) Reclassified from AOCI into Income		0		0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	0		0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		0		0
Foreign exchange contracts | General and administrative
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion - gain (loss) recognized in AOCI				1,024
Amount of Gain or (Loss) Reclassified from AOCI into Income	0		0
Amount of Gain or (Loss) Reclassified from AOCI into Income		2		(3)
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	0		0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		(2)		(3)
Foreign exchange contracts | Marketing and selling
Derivative Instruments, Gain (Loss) [Line Items]
Amount of Gain or (Loss) Reclassified from AOCI into Income			0
Amount of Gain or (Loss) Reclassified from AOCI into Income				0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income			0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income				0
Interest rate contracts | Interest expense
Derivative Instruments, Gain (Loss) [Line Items]
Effective portion - gain (loss) recognized in AOCI				120
Amount of Gain or (Loss) Reclassified from AOCI into Income	0		(1)
Amount of Gain or (Loss) Reclassified from AOCI into Income		(2)		(2)
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income	$ 0		$ 0
Amounts of Gain (Loss) Excluded from Effectiveness Testing Recognized in Income		$ 0		$ 0