Guarantor and Non-Guarantor Financial Information (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Jan. 31, 2014	Jan. 31, 2013	Jan. 31, 2014	Jan. 31, 2013
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
Net sales	$ 1,465.5	$ 1,559.6	$ 4,376.3	$ 4,558.0
Cost of products sold	920.3	1,023.4	2,785.6	3,010.1
Gross Profit	545.2	536.2	1,590.7	1,547.9
Selling, distribution, and administrative expenses, restructuring, merger and integration, and other special project costs	257.4	257.8	790.6	782.6
Amortization	24.9	24.2	74.1	72.6
Other operating income - net	(0.6)	(4.1)	(1.6)	(3.7)
Operating Income	263.5	258.3	727.6	696.4
Interest (expense) income - net	(18.4)	(23.8)	(62.7)	(71.3)
Other income (expense) - net	1.4	(0.5)	1.1	0.4
Equity in net earnings of subsidiaries	0	0	0	0
Income Before Income Taxes	246.5	234.0	666.0	625.5
Income taxes	79.8	79.8	219.3	211.6
Net Income	166.7	154.2	446.7	413.9
Other comprehensive (loss) income, net of tax	(11.3)	5.3	(17.7)	9.1
Comprehensive Income	155.4	159.5	429.0	423.0
Eliminations [Member]
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
Net sales	(1,357.9)	(1,040.6)	(4,165.2)	(3,102.6)
Cost of products sold	(1,367.0)	(1,034.7)	(4,162.8)	(3,094.4)
Gross Profit	9.1	(5.9)	(2.4)	(8.2)
Selling, distribution, and administrative expenses, restructuring, merger and integration, and other special project costs	0	0	0	0
Amortization	0	0	0	0
Other operating income - net	0	0	0	0
Operating Income	9.1	(5.9)	(2.4)	(8.2)
Interest (expense) income - net	0	0	0	0
Other income (expense) - net	0	0	0	0
Equity in net earnings of subsidiaries	(158.8)	(162.1)	(443.2)	(469.3)
Income Before Income Taxes	(149.7)	(168.0)	(445.6)	(477.5)
Income taxes	0	0	0	0
Net Income	(149.7)	(168.0)	(445.6)	(477.5)
Other comprehensive (loss) income, net of tax	11.0	(7.5)	14.4	(8.7)
Comprehensive Income	(138.7)	(175.5)	(431.2)	(486.2)
The J.M. Smucker Company (Parent) [Member]
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
Net sales	791.4	808.2	2,380.0	2,345.2
Cost of products sold	632.7	658.2	1,925.7	1,945.4
Gross Profit	158.7	150.0	454.3	399.8
Selling, distribution, and administrative expenses, restructuring, merger and integration, and other special project costs	47.7	41.7	151.7	157.7
Amortization	1.1	1.2	3.2	7.1
Other operating income - net	0.1	(2.6)	(1.3)	(3.3)
Operating Income	109.8	109.7	300.7	238.3
Interest (expense) income - net	(18.8)	(24.2)	(63.2)	(72.1)
Other income (expense) - net	1.3	(10.1)	1.3	(0.6)
Equity in net earnings of subsidiaries	105.8	103.3	283.9	302.4
Income Before Income Taxes	198.1	178.7	522.7	468.0
Income taxes	31.4	24.5	76.0	54.1
Net Income	166.7	154.2	446.7	413.9
Other comprehensive (loss) income, net of tax	(11.3)	5.3	(17.7)	9.1
Comprehensive Income	155.4	159.5	429.0	423.0
Subsidiary Guarantors [Member]
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
Net sales	311.1	326.2	992.0	1,002.6
Cost of products sold	282.6	300.2	905.8	921.1
Gross Profit	28.5	26.0	86.2	81.5
Selling, distribution, and administrative expenses, restructuring, merger and integration, and other special project costs	12.5	10.4	35.8	33.1
Amortization	0	0	0	0
Other operating income - net	0.3	(0.7)	0.4	(2.0)
Operating Income	15.7	16.3	50.0	50.4
Interest (expense) income - net	0.3	0.3	0.9	0.9
Other income (expense) - net	0.1	0.3	(0.1)	1.0
Equity in net earnings of subsidiaries	37.3	42.0	109.5	115.4
Income Before Income Taxes	53.4	58.9	160.3	167.7
Income taxes	0.1	0.1	0.3	0.3
Net Income	53.3	58.8	160.0	167.4
Other comprehensive (loss) income, net of tax	2.5	3.7	7.6	5.3
Comprehensive Income	55.8	62.5	167.6	172.7
Non-Guarantor Subsidiaries [Member]
CONDENSED CONSOLIDATING STATEMENTS OF COMPREHENSIVE INCOME
Net sales	1,720.9	1,465.8	5,169.5	4,312.8
Cost of products sold	1,372.0	1,099.7	4,116.9	3,238.0
Gross Profit	348.9	366.1	1,052.6	1,074.8
Selling, distribution, and administrative expenses, restructuring, merger and integration, and other special project costs	197.2	205.7	603.1	591.8
Amortization	23.8	23.0	70.9	65.5
Other operating income - net	(1.0)	(0.8)	(0.7)	1.6
Operating Income	128.9	138.2	379.3	415.9
Interest (expense) income - net	0.1	0.1	(0.4)	(0.1)
Other income (expense) - net	0	9.3	(0.1)	0
Equity in net earnings of subsidiaries	15.7	16.8	49.8	51.5
Income Before Income Taxes	144.7	164.4	428.6	467.3
Income taxes	48.3	55.2	143.0	157.2
Net Income	96.4	109.2	285.6	310.1
Other comprehensive (loss) income, net of tax	(13.5)	3.8	(22.0)	3.4
Comprehensive Income	$ 82.9	$ 113.0	$ 263.6	$ 313.5