Restructuring Charges (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	6 Months Ended		12 Months Ended	18 Months Ended	12 Months Ended	30 Months Ended
	Feb. 01, 2015	Jan. 26, 2014	Aug. 03, 2014	Feb. 01, 2015	Jul. 28, 2013	Feb. 01, 2015
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 0	$ 34
2014 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Number of Positions Eliminated				85
Restructuring charges		33	54
Restructuring charges, after tax		18	33
Restructuring charges, Per Diluted Share		$ 0.06	$ 0.10
Restructuring and Related Cost, Expected Cost	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
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
2014 Initiatives [Member] | Global Baking And Snacking [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	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
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
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] | Global Baking And Snacking [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Expected Cost Remaining	2			2		2
2013 Initiatives [Member] | Pepperidge Farm Initiative [Member]
Restructuring Cost and Reserve [Line Items]
Positions eliminated						110
Cost Of Products Sold [Member] | 2013 Initiatives [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Incurred Cost		$ 2	$ 3		$ 91