Transition period financial data (Tables)

12 Months Ended

Dec. 31, 2016

Transition period financial data [Abstract]

Transition period comparative income statement [Table Text Block]

The following table presents certain financial information (in millions, except per share amounts):

	Six Months Ended
	December 31, 2015			December 27, 2014
				(Unaudited)
	Restated			Restated
Net sales	$	2,632.2		$	1,844.7
Cost of sales	1,553.3			1,170.9
Gross profit	1,078.9			673.8
Operating expenses
Distribution	47.9			29.2
Research and development	88.2			89.8
Selling	325.9			95.3
Administration	306.8			165.6
Impairment charges	215.6			—
Restructuring	26.9			4.2
Total operating expenses	1,011.3			384.1
Operating income	67.6			289.7
Tysabri® royalty stream - change in fair value	(57.3		)	(46.9		)
Interest expense, net	89.9			56.7
Other expense, net	25.2			60.3
Loss on extinguishment of debt	0.9			9.6
Income before income taxes	8.9			210.0
Income tax expense (benefit)	(33.6		)	29.4
Net income	$	42.5		$	180.6
Income per share
Basic	$	0.29		$	1.34
Diluted	$	0.29		$	1.34
Weighted-average shares outstanding
Basic	145.6			135.1
Diluted	146.1			135.6
Dividends declared per share	$	0.25		$	0.21