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Earnings (loss) per Share (Details)	Jun. 28, 2013
Earnings Per Share [Abstract]
Distribution ratio	0.125

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- Definition

Stockholders Equity Note Spin Conversion Ratio

+ References

No definition available.

+ Details

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Namespace Prefix:	mnk_
Data Type:	xbrli:pureItemType
Balance Type:	na
Period Type:	instant

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- Details

Name:	us-gaap_EarningsPerShareAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration