Restructuring Charges (Narrative) (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended													12 Months Ended	16 Months Ended	6 Months Ended	16 Months Ended															3 Months Ended	6 Months Ended	12 Months Ended	31 Months Ended	6 Months Ended	31 Months Ended														3 Months Ended	12 Months Ended	16 Months Ended	6 Months Ended		12 Months Ended
	Jan. 26, 2014	Jan. 27, 2013	Jan. 26, 2014	Jan. 27, 2013	Jan. 27, 2013 Corporate Segment [Member] Other Restructuring [Member]	Jan. 26, 2014 Corporate Segment [Member] Other Restructuring [Member]	Jan. 27, 2013 Corporate Segment [Member] Other Restructuring [Member]	Jan. 26, 2014 2014 Initiatives [Member]	Jan. 26, 2014 2014 Initiatives [Member] CHINA	Jan. 26, 2014 2014 Initiatives [Member] CHINA Other Restructuring [Member]	Jan. 26, 2014 2014 Initiatives [Member] U.S. Simple Meals [Member]	Jan. 26, 2014 2014 Initiatives [Member] Global Baking And Snacking [Member]	Jan. 26, 2014 2014 Initiatives [Member] International Simple Meals And Beverages [Member]	Jan. 26, 2014 2014 Initiatives [Member] U.S. Beverages [Member]	Jan. 26, 2014 2014 Initiatives [Member] Bolthouse and Foodservice [Member]	Jan. 26, 2014 2014 Initiatives [Member] Corporate Segment [Member]	Jan. 26, 2014 2013 Initiatives [Member]	Jan. 27, 2013 2013 Initiatives [Member]	Jul. 28, 2013 2013 Initiatives [Member]	Jan. 26, 2014 2013 Initiatives [Member]	Jan. 26, 2014 2013 Initiatives [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] UNITED STATES	Jan. 26, 2014 2013 Initiatives [Member] Sacramento, CA [Member]	Jan. 26, 2014 2013 Initiatives [Member] South Plainfield, NJ [Member]	Jan. 26, 2014 2013 Initiatives [Member] MEXICO	Jan. 26, 2014 2013 Initiatives [Member] U.S. Simple Meals [Member]	Jan. 26, 2014 2013 Initiatives [Member] U.S. Simple Meals [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] Global Baking And Snacking [Member]	Jan. 26, 2014 2013 Initiatives [Member] Global Baking And Snacking [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] International Simple Meals And Beverages [Member]	Jan. 26, 2014 2013 Initiatives [Member] International Simple Meals And Beverages [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] U.S. Beverages [Member]	Jan. 26, 2014 2013 Initiatives [Member] U.S. Beverages [Member] Other Restructuring [Member]	Jan. 26, 2014 2013 Initiatives [Member] Bolthouse and Foodservice [Member]	Jan. 26, 2014 2013 Initiatives [Member] Bolthouse and Foodservice [Member] Other Restructuring [Member]	Jul. 31, 2011 2011 Initiatives [Member]	Jan. 26, 2014 2011 Initiatives [Member]	Jul. 29, 2012 2011 Initiatives [Member]	Jan. 26, 2014 2011 Initiatives [Member]	Jan. 26, 2014 2011 Initiatives [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] Camden New Jersey [Member]	Jan. 26, 2014 2011 Initiatives [Member] Outsource Of U.S. Retail Merchandising [Member]	Jan. 26, 2014 2011 Initiatives [Member] Moscow [Member]	Jan. 26, 2014 2011 Initiatives [Member] U.S. Simple Meals [Member]	Jan. 26, 2014 2011 Initiatives [Member] U.S. Simple Meals [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] Global Baking And Snacking [Member]	Jan. 26, 2014 2011 Initiatives [Member] Global Baking And Snacking [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] International Simple Meals And Beverages [Member]	Jan. 26, 2014 2011 Initiatives [Member] International Simple Meals And Beverages [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] U.S. Beverages [Member]	Jan. 26, 2014 2011 Initiatives [Member] U.S. Beverages [Member] Other Restructuring [Member]	Jan. 26, 2014 2011 Initiatives [Member] Bolthouse and Foodservice [Member]	Jan. 26, 2014 2011 Initiatives [Member] Bolthouse and Foodservice [Member] Other Restructuring [Member]	Jul. 31, 2011 Discontinued Operations [Member] 2011 Initiatives [Member]	Jul. 29, 2012 Discontinued Operations [Member] 2011 Initiatives [Member]	Jan. 26, 2014 Pepperidge Farm Initiative [Member] 2013 Initiatives [Member]	Jan. 26, 2014 Cost Of Products Sold [Member] 2013 Initiatives [Member] Other Restructuring [Member]	Jan. 27, 2013 Cost Of Products Sold [Member] 2013 Initiatives [Member] Other Restructuring [Member]	Jul. 28, 2013 Cost Of Products Sold [Member] 2013 Initiatives [Member] Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring and Related Cost, Cost Incurred to Date																				$ 145		$ 11					$ 90	$ 7	$ 13	$ 1	$ 9	$ 1	$ 31	$ 2	$ 2					$ 73		$ 9				$ 32	$ 2	$ 14	$ 0	$ 17	$ 3	$ 3	$ 0	$ 1	$ 0
Restructuring and Related Cost, Expected Cost Remaining																				3		3							3
Restructuring and Related Cost, Expected Number of Positions Eliminated																																								190																		110
Restructuring and Related Cost, Incurred Cost					40	2	61		13	1							3				3																	0			0																		2	61	91
Positions eliminated								200	110														70	700	27	260														510			130	190	50
Restructuring charges	13	8	34	30				20	13		5	9	3	1	1	1	1	30	51																		63		10																	3	3
Restructuring charges and related costs, after tax																	2	57	90																		41
Restructuring charges, after tax								13	5																														6
Restructuring charges per diluted share								$ 0.04	$ 0.02								$ 0.01	$ 0.18	$ 0.28																		$ 0.12		$ 0.02
Restructuring and Related Cost, Expected Cost																				148		14
Expected cash expenditures																				46																				50
Expected investment in capital expenditures																				31																				45
Payments for (Proceeds from) Productive Assets																				$ 23																				$ 35