Guarantor Condensed Consolidating Financial Statements - Statement of Operations (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended																12 Months Ended
	Jun. 28, 2014		Mar. 29, 2014		Dec. 28, 2013		Sep. 28, 2013		Jun. 29, 2013		Mar. 30, 2013		Dec. 29, 2012		Sep. 29, 2012		Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Condensed Financial Statements, Captions [Line Items]
Net sales	$ 1,144.2	[1]	$ 1,004.2	[2]	$ 979.0	[3]	$ 933.4	[4]	$ 967.2	[5]	$ 919.8	[6]	$ 883.0	[7]	$ 769.8	[8]	$ 4,060.8	$ 3,539.8	$ 3,173.2
Cost of sales																	2,613.1	2,259.8	2,077.7
Gross profit	415.7	[1]	315.0	[2]	360.7	[3]	356.3	[4]	356.2	[5]	331.4	[6]	307.2	[7]	285.3	[8]	1,447.7	1,280.0	1,095.6
Distribution																	55.3	47.5	39.1
Research and development																	152.5	115.2	105.8
Selling																	208.6	186.1	148.3
Administration																	411.3	240.2	224.4
Research and development					6.0												6.0	9.0	0
Restructuring charges	10.5		19.5		14.9												47.0	2.9	8.8
Total																	880.7	600.9	526.4
Operating income																	567.0	679.1	569.2
Interest, net																	103.5	65.8	60.7
Other expense (income), net																	12.4	0.9	(3.5)
Loss on sales of investments											1.6						12.7	4.7	0
Total loss on extinguishment of debt					(165.8)												165.8	0	0
Income from continuing operations before income taxes																	272.6	607.7	512.0
Income tax expense																	67.3	165.8	119.0
Income from continuing operations before equity in net income of subsidiaries																			393.0
Net loss from equity method investment																			0
Income from continuing operations																	205.3	441.9	393.0
Income from discontinued operations, net of tax																	0	0	8.6
Net income	131.7	[1]	48.1	[2]	(86.0)	[3]	111.4	[4]	118.5	[5]	111.9	[6]	106.0	[7]	105.6	[8]	205.3	441.9	401.6
Elimination Entries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales																	(600.3)	(536.4)	(473.2)
Cost of sales																	(563.2)	(536.4)	(473.2)
Gross profit																	(37.1)	0	0
Distribution																	0	0	0
Research and development																	(28.6)	0	0
Selling																	(5.1)	0	0
Administration																	(2.7)	0	(0.3)
Research and development																	0	0
Restructuring charges																	0	0	0
Total																	(36.4)	0	(0.3)
Operating income																	(0.7)	0	0.3
Interest, net																	0	0	0
Other expense (income), net																	0.3	0	0.3
Loss on sales of investments																	0	0
Total loss on extinguishment of debt																	0
Income from continuing operations before income taxes																	(1.0)	0	0
Income tax expense																	0	0	0
Income from continuing operations before equity in net income of subsidiaries																			0
Net loss from equity method investment																			(116.1)
Income from continuing operations																	(1.0)	0	(116.1)
Income from discontinued operations, net of tax																	(199.3)	(187.8)	(8.6)
Net income																	(200.3)	(187.8)	(124.7)
Perrigo Company plc [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales																	0
Cost of sales																	0
Gross profit																	0
Distribution																	0
Research and development																	0
Selling																	0
Administration																	56.3
Research and development																	0
Restructuring charges																	0
Total																	56.3
Operating income																	(56.3)
Interest, net																	62.9
Other expense (income), net																	0.5
Loss on sales of investments																	0
Total loss on extinguishment of debt																	19.0
Income from continuing operations before income taxes																	(138.7)
Income tax expense																	(2.4)
Income from continuing operations																	(136.3)
Income from discontinued operations, net of tax																	341.6
Net income																	205.3
Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales																	3,592.2	2,986.9	2,715.1
Cost of sales																	2,535.2	2,057.9	1,945.5
Gross profit																	1,057.0	929.0	769.6
Distribution																	44.3	37.7	29.2
Research and development																	124.1	76.5	67.7
Selling																	171.2	145.8	110.3
Administration																	313.6	207.5	180.5
Research and development																	4.0	9.0
Restructuring charges																	29.7	2.9	8.8
Total																	686.9	479.3	396.5
Operating income																	370.1	449.7	373.1
Interest, net																	439.1	64.6	27.6
Other expense (income), net																	(359.9)	291.4	219.0
Loss on sales of investments																	0	3.1
Total loss on extinguishment of debt																	146.8
Income from continuing operations before income taxes																	144.1	90.6	126.5
Income tax expense																	35.5	147.9	115.8
Income from continuing operations before equity in net income of subsidiaries																			10.7
Net loss from equity method investment																			382.3
Income from continuing operations																	108.6	(57.3)	393.0
Income from discontinued operations, net of tax																	(241.0)	499.2	8.6
Net income																	(132.4)	441.9	401.6
Non-Guarantor Subsidiaries [Member]
Condensed Financial Statements, Captions [Line Items]
Net sales																	1,068.9	1,089.3	931.4
Cost of sales																	641.1	738.3	605.4
Gross profit																	427.8	351.0	326.0
Distribution																	11.0	9.8	9.9
Research and development																	57.0	38.7	38.1
Selling																	42.5	40.3	38.0
Administration																	44.1	32.7	44.2
Research and development																	2.0	0
Restructuring charges																	17.3	0	0
Total																	173.9	121.5	130.2
Operating income																	253.9	229.5	195.8
Interest, net																	(398.5)	1.2	33.1
Other expense (income), net																	371.5	(290.5)	(222.8)
Loss on sales of investments																	12.7	1.6
Total loss on extinguishment of debt																	0
Income from continuing operations before income taxes																	268.2	517.2	385.5
Income tax expense																	34.2	17.9	3.2
Income from continuing operations before equity in net income of subsidiaries																			382.3
Net loss from equity method investment																			(266.2)
Income from continuing operations																	234.0	499.2	116.1
Income from discontinued operations, net of tax																	98.7	(311.4)	8.6
Net income																	$ 332.7	$ 187.8	$ 124.7

[1] Includes restructuring charges totaling $10.5 million and a loss contingency of $15.0 million related to Texas Medicaid.

[2] Includes restructuring charges totaling $19.5 million, write-up of contingent consideration of $5.8 million related to Fera, and $3.2 million of Elan transaction costs.

[3] Includes loss on extinguishment of debt of $165.8 million, Elan transaction costs of $103.2 million, restructuring charges totaling $14.9 million, write-off of contingent consideration of $4.9 million related to Fera, and write-off of IPR&D of $6.0 million related to Paddock and Rosemont.

[4] Includes Elan transaction costs of $12.0 million, litigation settlement of $2.5 million, and acquisition costs of $1.9 million.

[5] Includes a pre-tax charge to cost of sales of $1.2 million associated with the step-up in value of inventory related to the Rosemont acquisition, $5.6 million of restructuring and other integration-related costs associated with the Velcera acquisition and a $9.0 million impairment charge related to the write-off of IPR&D.

[6] Includes a pre-tax charge to cost of sales of $1.9 million associated with the step-up in value of inventory related to the Rosemont acquisition, approximately $3.1 million of acquisition costs associated with the Rosemont and Velcera acquisitions and a $1.6 million loss related to the sale of the Company's investment securities.

[7] Includes a pre-tax charge to cost of sales of $7.7 million associated with the step-up in value of inventory related to the Sergeant's acquisition, $1.5 million of severance costs associated with the Cobrek acquisition and a $3.0 million loss on the sale of investment related to Cobrek.

[8] Includes a pre-tax charge of approximately $1.9 million of acquisition costs associated with the Sergeant's acquisition.