Restructuring Charges (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended	21 Months Ended	12 Months Ended	33 Months Ended
	May 03, 2015	Apr. 27, 2014	May 03, 2015	Apr. 27, 2014	Aug. 03, 2014	May 03, 2015	Jul. 28, 2013	May 03, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 9	$ 1	$ 9	$ 35
2015 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated	471
Restructuring charges	9
Restructuring charges and related costs, after tax	11
Restructuring charges, Per Diluted Share	$ 0.04
Restructuring and Related Cost, Expected Cost	131		131			131		131
Expected cash expenditures	124
Restructuring and Related Cost, Incurred Cost			18
Restructuring and Related Cost, Expected Cost Remaining	113		113			113		113
2015 Initiatives [Member] | U.S. Simple Meals [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	37		37			37		37
2015 Initiatives [Member] | Global Baking And Snacking [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	45		45			45		45
2015 Initiatives [Member] | U.S. Beverages [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	9		9			9		9
2015 Initiatives [Member] | Bolthouse and Foodservice [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	5		5			5		5
2015 Initiatives [Member] | Corporate, Non-Segment [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	17		17			17		17
2014 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated						85
Restructuring charges				34	54
Restructuring charges, after tax				19	33
Restructuring charges, Per Diluted Share				$ 0.06	$ 0.10
Restructuring and Related Cost, Expected Cost	56		56			56		56
Expected cash expenditures						43
Expected investment in capital expenditures						6
Payments for (Proceeds from) Productive Assets						1
Restructuring and Related Cost, Expected Cost Remaining	2		2			2		2
2014 Initiatives [Member] | North America and Asia Pacific [Member]
Restructuring Cost and Reserve [Line Items]
Positions eliminated						250
2014 Initiatives [Member] | CHINA
Restructuring Cost and Reserve [Line Items]
Positions eliminated						100
2014 Initiatives [Member] | Australia [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated						90
2014 Initiatives [Member] | U.S. Simple Meals [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	1		1			1		1
2014 Initiatives [Member] | Global Baking And Snacking [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	1		1			1		1
2013 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring charges				1	1		51
Restructuring charges and related costs, after tax				2	3		90
Restructuring charges, Per Diluted Share				$ 0.01	$ 0.01		$ 0.28
Restructuring and Related Cost, Expected Cost	148		148			148		148
Expected cash expenditures								46
Expected investment in capital expenditures								31
Payments for (Proceeds from) Productive Assets								29
Restructuring and Related Cost, Expected Cost Remaining	2		2			2		2
2013 Initiatives [Member] | Sacramento, CA [Member]
Restructuring Cost and Reserve [Line Items]
Positions eliminated								700
2013 Initiatives [Member] | South Plainfield, NJ [Member]
Restructuring Cost and Reserve [Line Items]
Positions eliminated								27
2013 Initiatives [Member] | MEXICO
Restructuring Cost and Reserve [Line Items]
Positions eliminated								260
2013 Initiatives [Member] | UNITED STATES
Restructuring Cost and Reserve [Line Items]
Positions eliminated								70
2013 Initiatives [Member] | SOUTH CAROLINA
Restructuring Cost and Reserve [Line Items]
Positions eliminated								110
2013 Initiatives [Member] | Global Baking And Snacking [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	2		2			2		2
Cost Of Products Sold [Member] | 2013 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost				2	3		91
Other Cost Savings Implementation Costs [Member] | 2015 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost	22		22			22		22
Restructuring and Related Cost, Incurred Cost			9
Restructuring and Related Cost, Expected Cost Remaining	13		13			13		13
Other Cost Savings Implementation Costs [Member] | Administrative Expenses [Member] | 2015 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost	$ 9		$ 9