Earnings Per Share (Details) - USD ($) shares in Thousands, $ in Millions		3 Months Ended
	Oct. 22, 2015	Sep. 26, 2015	Sep. 27, 2014
Numerator:
Net income		$ 112.6	$ 96.3
Denominator:
Basic		146,300	133,900
Dilutive effect of share-based awards		600	500
Weighted average shares outstanding for diluted EPS		146,900	134,400
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount		100	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period		154	186
Subsequent Event [Member]
Denominator:
Stock Repurchase Program, Authorized Amount	$ 500.0
Repurchase Agreements, Maturities	P3Y
Subsequent Event [Member] | Perrigo Co PLC [Member]
Denominator:
Stock Repurchase Program, Authorized Amount	$ 2,000.0