Supplemental Financial Statement Data (Schedule of Balance Sheets) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Aug. 03, 2014		Jul. 28, 2013		Jul. 29, 2012
Receivables [Abstract]
Customer accounts receivable	$ 597		$ 587
Allowances	(12)		(11)
Accounts receivable, net current	585		576
Other receivables	85		59
Accounts receivable, net	670		635
Inventory, Net [Abstract]
Inventory, Raw Materials, Gross	399		364
Inventory, Finished Goods, Gross	617		561
Inventories	1,016		925
Prepaid Expense and Other Assets, Current [Abstract]
Deferred Tax Assets, Net of Valuation Allowance, Current	96		90
Derivative Asset, Current	15		9
Other Assets, Miscellaneous, Current	71		36
Other current assets	182		135
Property, Plant and Equipment, Net [Abstract]
Land	62		59
Buildings and Improvements, Gross	1,384		1,349
Machinery and Equipment, Gross	3,856		4,017
Construction in Progress, Gross	217		230
Property, Plant and Equipment, Gross	5,519		5,655
Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment	(3,201)	[1]	(3,395)	[1]
Plant assets, net of depreciation	2,318		2,260		2,127
Other Assets, Noncurrent [Abstract]
Derivative Asset, Noncurrent	0		23
Deferred Tax Assets, Net of Valuation Allowance, Noncurrent	32		27
Other Assets, Miscellaneous, Noncurrent	55		81
Other assets	87		131
Other Liabilities, Current [Abstract]
Other Accrued Liabilities, Current	109		113
Derivative Liability, Current	17		35
Accrued Marketing Costs, Current	122		137
Interest Payable, Current	37		41
Restructuring Reserve, Current	31		21
Employee-related Liabilities, Current	237		270
Accrued liabilities	553		617
Other Liabilities, Noncurrent [Abstract]
Defined Benefit Pension Plan, Liabilities, Noncurrent	170		190
Deferred Compensation Liability, Noncurrent	109	[2]	112	[2]
Other Postretirement Benefits Payable, Noncurrent	359		361
Derivative Liability, Noncurrent	6		1
Liability for Uncertain Tax Positions, Noncurrent	23		40
Other Accrued Liabilities, Noncurrent	62		72
Other liabilities	729		776
Depreciation	287		393		258
Continuing Operations [Member]
Other Liabilities, Noncurrent [Abstract]
Depreciation	$ 287		$ 382		$ 247
Building [Member] | Minimum [Member]
Other Liabilities, Noncurrent [Abstract]
Property, Plant and Equipment, Useful Life	7 years
Building [Member] | Maximum [Member]
Other Liabilities, Noncurrent [Abstract]
Property, Plant and Equipment, Useful Life	45 years
Machinery and Equipment [Member] | Minimum [Member]
Other Liabilities, Noncurrent [Abstract]
Property, Plant and Equipment, Useful Life	2 years
Machinery and Equipment [Member] | Maximum [Member]
Other Liabilities, Noncurrent [Abstract]
Property, Plant and Equipment, Useful Life	20 years

[1] Depreciation expense was $287 in 2014, $393 in 2013 and $258 in 2012. Depreciation expense of continuing operations was $287 in 2014, $382 in 2013 and $247 in 2012. Buildings are depreciated over periods ranging from 7 to 45 years. Machinery and equipment are depreciated over periods generally ranging from 2 to 20 years.

[2] The deferred compensation obligation represents unfunded plans maintained for the purpose of providing the company's directors and certain of its executives the opportunity to defer a portion of their compensation. All forms of compensation contributed to the deferred compensation plans are accounted for in accordance with the underlying program. Deferrals and company contributions are credited to an investment account in the participant's name, although no funds are actually contributed to the investment account and no investments are actually purchased. Seven investment choices are available, including: (1) a book account that tracks the total return on company stock; (2) a book account that tracks the performance of the Vanguard Institutional Index; (3) a book account that tracks the performance of the Vanguard Extended Market Index; (4) a book account that tracks the performance of the Vanguard Total International Stock Index; (5) a book account that tracks the performance of the Vanguard Total Bond Market Index; (6) a book account that tracks the performance of the Vanguard Short-Term Bond Index; and (7) a book account that tracks the BlackRock Liquidity TempFund. Participants can reallocate investments daily and are entitled to the gains and losses on investment funds. The company recognizes an amount in the Consolidated Statements of Earnings for the market appreciation/depreciation of each fund.