Borrowings (Schedule Of Long-Term Debt) (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Oct. 29, 2016	Jul. 30, 2016	Sep. 30, 2016
Debt Instrument [Line Items]
Total	$ 34,650	$ 28,400
Unaccreted discount/issuance costs	(150)	(137)
Hedge accounting fair value adjustments	289	379
Total	34,789	28,642
Current portion of long-term debt	4,155	4,159
Long-term debt	$ 30,634	$ 24,483
Floating Rate Notes 3-month Libor Plus 0.28% Due March 2017
Debt Instrument [Line Items]
Three-month LIBOR plus this Percentage	0.28%	0.28%
Amount	$ 1,000	$ 1,000
Effective Rate	1.18%	1.03%
Floating Rate Notes 3-month Libor Plus 0.60% Due February 2018
Debt Instrument [Line Items]
Three-month LIBOR plus this Percentage	0.60%	0.60%
Amount	$ 1,000	$ 1,000
Effective Rate	1.48%	1.32%
Floating Rate Notes 3-month Libor Plus 0.31% Due June 2018
Debt Instrument [Line Items]
Three-month LIBOR plus this Percentage	0.31%	0.31%
Amount	$ 900	$ 900
Effective Rate	1.23%	1.03%
Floating Rate Notes 3-month Libor Plus 0.50% Due March 2019
Debt Instrument [Line Items]
Three-month LIBOR plus this Percentage	0.50%	0.50%
Amount	$ 500	$ 500
Effective Rate	1.40%	1.23%
Floating Rate Notes 3-month Libor Plus 0.34% Due September 2019
Debt Instrument [Line Items]
Three-month LIBOR plus this Percentage	0.34%	0.34%
Amount	$ 500	$ 0
Effective Rate	1.24%	0.00%
Fixed-Rate Notes, 1.1%, Due March 2017
Debt Instrument [Line Items]
Amount	$ 2,400	$ 2,400
Effective Rate	0.93%	0.87%
Interest rate, stated percentage	1.10%	1.10%
Fixed-Rate Notes, 3.15%, Due March 2017
Debt Instrument [Line Items]
Amount	$ 750	$ 750
Effective Rate	1.42%	1.22%
Interest rate, stated percentage	3.15%	3.15%
Fixed Rate Notes, 1.4%, Due February 28, 2018
Debt Instrument [Line Items]
Amount	$ 1,250	$ 1,250
Effective Rate	1.47%	1.47%
Interest rate, stated percentage	1.40%	1.40%
Fixed rate notes 1.65% due June 2018
Debt Instrument [Line Items]
Amount	$ 1,600	$ 1,600
Effective Rate	1.72%	1.72%
Interest rate, stated percentage	1.65%	1.65%
Fixed-Rate Notes, 4.95%, Due February 2019
Debt Instrument [Line Items]
Amount	$ 2,000	$ 2,000
Effective Rate	4.78%	4.76%
Interest rate, stated percentage	4.95%	4.95%
Fixed-Rate Notes, 1.60%, Due February 2019
Debt Instrument [Line Items]
Amount	$ 1,000	$ 1,000
Effective Rate	1.67%	1.67%
Interest rate, stated percentage	1.60%	1.60%
Fixed-Rate Notes, 2.125%, Due March 2019
Debt Instrument [Line Items]
Amount	$ 1,750	$ 1,750
Effective Rate	1.14%	1.08%
Interest rate, stated percentage	2.125%	2.125%
Fixed-Rate Notes, 1.40%, Due September 2019
Debt Instrument [Line Items]
Amount	$ 1,500	$ 0
Effective Rate	1.48%	0.00%
Interest rate, stated percentage	1.40%	1.40%
Fixed-Rate Notes, 4.45%, Due January 2020
Debt Instrument [Line Items]
Amount	$ 2,500	$ 2,500
Effective Rate	3.29%	3.25%
Interest rate, stated percentage	4.45%	4.45%
Fixed-Rate Notes, 2.45%, Due June 2020
Debt Instrument [Line Items]
Amount	$ 1,500	$ 1,500
Effective Rate	2.54%	2.54%
Interest rate, stated percentage	2.45%	2.45%
Fixed-Rate Notes, 2.2%, Due February 2021
Debt Instrument [Line Items]
Amount	$ 2,500	$ 2,500
Effective Rate	2.30%	2.30%
Interest rate, stated percentage	2.20%	2.20%
Fixed-Rate Notes, 2.90%, Due March 2021
Debt Instrument [Line Items]
Amount	$ 500	$ 500
Effective Rate	1.31%	1.24%
Interest rate, stated percentage	2.90%	2.90%
Fixed-Rate Notes, 1.85%, Due September 2021
Debt Instrument [Line Items]
Amount	$ 2,000	$ 0
Effective Rate	1.90%	0.00%
Interest rate, stated percentage	1.85%	1.85%
Fixed-Rate Notes, 3.0 %, Due June 15, 2022
Debt Instrument [Line Items]
Amount	$ 500	$ 500
Effective Rate	1.56%	1.51%
Interest rate, stated percentage	3.00%	3.00%
Fixed-Rate Notes, 2.6%, Due February, 2023
Debt Instrument [Line Items]
Amount	$ 500	$ 500
Effective Rate	2.68%	2.68%
Interest rate, stated percentage	2.60%	2.60%
Fixed-Rate Notes, 2.20%, Due September 2023
Debt Instrument [Line Items]
Amount	$ 750	$ 0
Effective Rate	2.27%	0.00%
Interest rate, stated percentage	2.20%	2.20%
Fixed-Rate Notes,3.625%, Due March 2024
Debt Instrument [Line Items]
Amount	$ 1,000	$ 1,000
Effective Rate	1.42%	1.36%
Interest rate, stated percentage	3.625%	3.625%
Fixed-Rate Notes,3.5%, Due June 15, 2025
Debt Instrument [Line Items]
Amount	$ 500	$ 500
Effective Rate	1.72%	1.67%
Interest rate, stated percentage	3.50%	3.50%
Fixed-Rate Notes,2.95%, Due February, 2026
Debt Instrument [Line Items]
Amount	$ 750	$ 750
Effective Rate	3.01%	3.01%
Interest rate, stated percentage	2.95%	2.95%
Fixed-Rate Notes, 2.50%, Due September 2026
Debt Instrument [Line Items]
Amount	$ 1,500	$ 0
Effective Rate	2.55%	0.00%
Interest rate, stated percentage	2.50%	2.50%
Fixed-Rate Notes, 5.9%, Due February 2039
Debt Instrument [Line Items]
Amount	$ 2,000	$ 2,000
Effective Rate	6.11%	6.11%
Interest rate, stated percentage	5.90%	5.90%
Fixed-Rate Notes, 5.5%, Due January 2040
Debt Instrument [Line Items]
Amount	$ 2,000	$ 2,000
Effective Rate	5.67%	5.67%
Interest rate, stated percentage	5.50%	5.50%
Aggregate debt issuance in February 2016 [Member]
Debt Instrument [Line Items]
Amount			$ 6,250