Restructuring Charges (Schedule Of Restructuring Activity And Related Reserves) (Details) (USD $) In Millions, unless otherwise specified	9 Months Ended			3 Months Ended	9 Months Ended
	Apr. 27, 2014 2014 Initiatives [Member] CHINA	Apr. 27, 2014 2014 Initiatives [Member] Severance Pay And Benefits [Member]	Apr. 27, 2014 2014 Initiatives [Member] Severance Pay And Benefits [Member] CHINA	Jan. 26, 2014 2014 Initiatives [Member] Asset Impairment Accelerated Depreciation [Member] CHINA Fair Value, Measurements, Nonrecurring [Member]	Apr. 27, 2014 2014 Initiatives [Member] Other Restructuring [Member] CHINA	Apr. 27, 2014 2013 Initiatives [Member]	Apr. 27, 2014 2013 Initiatives [Member] Severance Pay And Benefits [Member]	Apr. 27, 2014 2013 Initiatives [Member] Other Restructuring [Member]	Apr. 27, 2014 2011 Initiatives [Member]	Apr. 27, 2014 2011 Initiatives [Member] Severance Pay And Benefits [Member]	Apr. 27, 2014 2011 Initiatives [Member] Other Restructuring [Member]
Restructuring Reserve [Roll Forward]
Accrued Balance at beginning of period		$ 0	$ 0				$ 17		$ 4	$ 3	$ 1
Restructuring and Related Cost, Incurred Cost	14	20	2	11	1	3	0	3	0	0	0
Cash Payments		(9)	0				(12)		(2)	(2)	0
Restructuring Reserve, Translation Adjustment		0							0	0	0
Accrued Balance at end of period		$ 11	$ 2				$ 5		$ 2	$ 1	$ 1