HOG PRODUCTION COST SAVINGS INITIATIVE (Details) (Hog Production Segment [Member], USD $) In Millions, unless otherwise specified	3 Months Ended			9 Months Ended	24 Months Ended
	Jan. 29, 2012	Oct. 30, 2011	Jul. 31, 2011	Jan. 29, 2012	Jan. 29, 2012	May 01, 2011
Restructuring Cost and Reserve [Line Items]
Period Expense	$ 0.5	$ 1.2	$ 1.1
Cumulative Expense-to-Date					39.9
Estimated Remaining Expense	3.2			3.2	3.2
Cost Savings Activities [Domain]
Restructuring Cost and Reserve [Line Items]
Accrued Balance	0.1			0.1	0.1	2.4
Period Expense	0.5	1.2	1.0
Payments				(5.0)
Cumulative Expense-to-Date					31.8
Estimated Remaining Expense	3.2			3.2	3.2
Contract Termination [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance	0.1			0.1	0.1	0.8
Period Expense	0.1	0.3	0.1
Payments				(1.2)
Cumulative Expense-to-Date					22.7
Estimated Remaining Expense	2.9			2.9	2.9
Other Costs Associated with Restructuring and Related Activities [Member]
Restructuring Cost and Reserve [Line Items]
Accrued Balance	0			0	0	1.6
Period Expense	0.4	0.9	0.9
Payments				(3.8)
Cumulative Expense-to-Date					9.1
Estimated Remaining Expense	0.3			0.3	0.3
Other Cost Savings Charges [Domain]
Restructuring Cost and Reserve [Line Items]
Period Expense	0	0	0.1
Cumulative Expense-to-Date					8.1
Estimated Remaining Expense	0			0	0
Accelerated Depreciation Associated with Restructuring and Related Activities [Member]
Restructuring Cost and Reserve [Line Items]
Period Expense	0	0	0.1
Cumulative Expense-to-Date					5.6
Estimated Remaining Expense	0			0	0
Impairment Charges Associated with Restructuring and Related Activities [Member]
Restructuring Cost and Reserve [Line Items]
Period Expense	0	0	0
Cumulative Expense-to-Date					2.5
Estimated Remaining Expense	$ 0			$ 0	$ 0