Guarantor and Non-Guarantor Financial Information (Details 2) (USD $) In Millions, unless otherwise specified	9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Net Cash Provided by Operating Activities	$ 589.1	$ 683.6
Investing Activities
Businesses acquired, net of cash acquired	(101.8)	0
Additions to property, plant, and equipment	(148.9)	(146.5)
Proceeds from disposal of property, plant, and equipment	1.8	3.1
Other - net	(8.3)	17.2
Net Cash Used for Investing Activities	(257.2)	(126.2)
Financing Activities
Quarterly dividends paid	(177.4)	(166.5)
Purchase of treasury shares	(227.0)	(175.5)
Proceeds from stock option exercises	0.4	1.9
Investments in subsidiaries	0	0
Intercompany	0	0
Other - net	(1.2)	(7.1)
Net Cash Used for Financing Activities	(405.2)	(347.2)
Effect of exchange rate changes on cash	(14.5)	(1.1)
Net (decrease) increase in cash and cash equivalents	(87.8)	209.1
Cash and cash equivalents at beginning of period	256.4	229.7
Cash and Cash Equivalents at End of Period	168.6	438.8
Eliminations [Member]
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Net Cash Provided by Operating Activities	0	0
Investing Activities
Businesses acquired, net of cash acquired	0
Additions to property, plant, and equipment	0	0
Proceeds from disposal of property, plant, and equipment	0	0
Other - net	0	0
Net Cash Used for Investing Activities	0	0
Financing Activities
Quarterly dividends paid	0	0
Purchase of treasury shares	0	0
Proceeds from stock option exercises	0	0
Investments in subsidiaries	0	0
Intercompany	0	0
Other - net	0	0
Net Cash Used for Financing Activities	0	0
Effect of exchange rate changes on cash	0	0
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and Cash Equivalents at End of Period	0	0
The J.M. Smucker Company (Parent) [Member]
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Net Cash Provided by Operating Activities	104.7	119.0
Investing Activities
Businesses acquired, net of cash acquired	0
Additions to property, plant, and equipment	(20.0)	(24.9)
Proceeds from disposal of property, plant, and equipment	0	0
Other - net	(3.4)	(9.4)
Net Cash Used for Investing Activities	(23.4)	(34.3)
Financing Activities
Quarterly dividends paid	(177.4)	(166.5)
Purchase of treasury shares	(227.0)	(175.5)
Proceeds from stock option exercises	0.4	1.9
Investments in subsidiaries	(40.3)	(22.2)
Intercompany	266.7	461.1
Other - net	6.6	2.9
Net Cash Used for Financing Activities	(171.0)	101.7
Effect of exchange rate changes on cash	0	0
Net (decrease) increase in cash and cash equivalents	(89.7)	186.4
Cash and cash equivalents at beginning of period	108.0	108.3
Cash and Cash Equivalents at End of Period	18.3	294.7
Subsidiary Guarantors [Member]
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Net Cash Provided by Operating Activities	107.6	103.4
Investing Activities
Businesses acquired, net of cash acquired	0
Additions to property, plant, and equipment	(83.8)	(70.7)
Proceeds from disposal of property, plant, and equipment	0.5	0.1
Other - net	(1.0)	3.9
Net Cash Used for Investing Activities	(84.3)	(66.7)
Financing Activities
Quarterly dividends paid	0	0
Purchase of treasury shares	0	0
Proceeds from stock option exercises	0	0
Investments in subsidiaries	(46.6)	(156.9)
Intercompany	23.3	120.2
Other - net	0	0
Net Cash Used for Financing Activities	(23.3)	(36.7)
Effect of exchange rate changes on cash	0	0
Net (decrease) increase in cash and cash equivalents	0	0
Cash and cash equivalents at beginning of period	0	0
Cash and Cash Equivalents at End of Period	0	0
Non-Guarantor Subsidiaries [Member]
CONDENSED CONSOLIDATING STATEMENTS OF CASH FLOWS
Net Cash Provided by Operating Activities	376.8	461.2
Investing Activities
Businesses acquired, net of cash acquired	(101.8)
Additions to property, plant, and equipment	(45.1)	(50.9)
Proceeds from disposal of property, plant, and equipment	1.3	3.0
Other - net	(3.9)	22.7
Net Cash Used for Investing Activities	(149.5)	(25.2)
Financing Activities
Quarterly dividends paid	0	0
Purchase of treasury shares	0	0
Proceeds from stock option exercises	0	0
Investments in subsidiaries	86.9	179.1
Intercompany	(290.0)	(581.3)
Other - net	(7.8)	(10.0)
Net Cash Used for Financing Activities	(210.9)	(412.2)
Effect of exchange rate changes on cash	(14.5)	(1.1)
Net (decrease) increase in cash and cash equivalents	1.9	22.7
Cash and cash equivalents at beginning of period	148.4	121.4
Cash and Cash Equivalents at End of Period	$ 150.3	$ 144.1