Quarterly Financial Data (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2016

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

The following table summarizes the quarterly and annual results (in millions, except per share data):

	First quarter		Second quarter		Third quarter		Fourth quarter		Fiscal year
Fiscal 2016
Net revenue	$	926.8	$	775.1	$	751.7	$	835.4	$	3,289.0
Gross profit	472.1		390.4		378.3		424.4		1,665.2
Net income	355.3		208.1		185.0		246.8		995.2
Per share data (1)
Net income, basic	$	1.87	$	1.09	$	0.98	$	1.33	$	5.27
Net income, diluted	$	1.82	$	1.08	$	0.97	$	1.31	$	5.18
Fiscal 2015
Net revenue	$	805.5	$	762.1	$	810.0	$	880.8	$	3,258.4
Gross profit	373.0		352.2		393.1		436.2		1,554.5
Net income	195.2		166.5		207.4		229.2		798.3
Per share data (1)
Net income, basic	$	1.03	$	0.88	$	1.09	$	1.21	$	4.21
Net income, diluted	$	1.01	$	0.85	$	1.06	$	1.18	$	4.10

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(1) Earnings per share calculations for each of the quarters are based on the weighted average number of shares outstanding and included common stock equivalents in each period. Therefore, the sums of the quarters do not necessarily equal the full year earnings per share.