Accumulated Other Comprehensive Income (Loss) (Schecule of amounts reclassified from AOCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Nov. 01, 2020	Oct. 27, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other expenses / (income)	$ (18)	$ 56
Earnings (loss) from discontinued operations	0	3
Interest expense	55	80
Taxes on earnings	97	68
Net Income (Loss) Attributable to Parent	309	166
Accumulated Translation Adjustment [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other expenses / (income)	0	23
Earnings (loss) from discontinued operations	0	59
Earnings before taxes	0	82
Taxes on earnings	0	0
Net Income (Loss) Attributable to Parent	0	(82)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Earnings before taxes	0	2
Taxes on earnings	0	(1)
Net Income (Loss) Attributable to Parent	0	(1)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Foreign Exchange Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Earnings (loss) from discontinued operations	0	1
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member] | Interest Rate Contract [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Interest expense	0	1
Accumulated Defined Benefit Plans Adjustment, Net Prior Service Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Other expenses / (income)	(1)	(7)
Taxes on earnings	0	1
Net Income (Loss) Attributable to Parent	$ 1	$ 6