Quarterly Financial Information (Unaudited) (Tables)

12 Months Ended

Sep. 30, 2017

Quarterly Financial Information Disclosure [Abstract]

Schedule of Quarterly Financial Information

	2017 Quarters
(in millions, except per share amounts)	First		Second		Third		Fourth	2017
Sales	$	1,490.3	$	1,554.3	$	1,599.2	1,667.5	$	6,311.3
Gross profit	642.3		656.5		677.7		647.7	2,624.2
Income before income taxes	257.6		230.3		276.0		273.5	1,037.4
Net income	214.7		189.5		216.9		204.6	825.7
Earnings per share:
Basic	1.67		1.47		1.69		1.59	6.42
Diluted	1.65		1.45		1.67		1.57	6.35

	2016 Quarters
(in millions, except per share amounts)	First		Second		Third		Fourth		2016
Sales	$	1,426.6	$	1,440.3	$	1,474.0	$	1,538.6	$	5,879.5
Gross profit	612.7		594.1		616.8		651.9		2,475.5
Income before income taxes	236.9		217.0		252.3		236.9		943.1
Net income	185.5		168.0		191.0		185.2		729.7
Earnings per share:
Basic	1.41		1.29		1.47		1.44		5.60
Diluted	1.40		1.28		1.46		1.43		5.56

Note: The sum of the quarterly per share amounts will not necessarily equal the annual per share amounts presented.