Condensed Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jul. 01, 2017	Jul. 02, 2016
Income Statement [Abstract]
Net sales	$ 1,078.0	$ 994.1	$ 2,528.2	$ 2,433.8
Cost of sales	662.8	636.3	1,566.5	1,532.6
Cost of sales—impairment, restructuring and other	0.0	0.4	0.0	5.5
Gross profit	415.2	357.4	961.7	895.7
Operating expenses:
Selling, general and administrative	172.0	151.9	488.8	466.1
Impairment, restructuring and other	4.1	(5.8)	8.8	(51.7)
Other income, net	(6.5)	(5.6)	(12.5)	(7.1)
Income (loss) from operations	245.6	216.9	476.6	488.4
Equity in (income) loss of unconsolidated affiliates	(7.2)	3.5	30.1	3.5
Costs related to refinancing	0.0	0.0	0.0	8.8
Interest expense	21.8	16.9	58.9	52.3
Income (loss) from continuing operations before income taxes	231.0	196.5	387.6	423.8
Income tax expense from continuing operations	79.1	69.5	134.7	150.3
Income from continuing operations	151.9	127.0	252.9	273.5
Income (loss) from discontinued operations, net of tax	0.0	85.7	(0.6)	68.2
Net income (loss)	151.9	212.7	252.3	341.7
Net (income) loss attributable to noncontrolling interest	0.0	0.4	(0.5)	0.2
Net income (loss) attributable to controlling interest	$ 151.9	$ 213.1	$ 251.8	$ 341.9
Basic income per common share:
Income from continuing operations (USD per share)	$ 2.57	$ 2.09	$ 4.23	$ 4.46
Income (loss) from discontinued operations (USD per share)	0.00	1.40	(0.01)	1.11
Basic income per common share (USD per share)	$ 2.57	$ 3.49	$ 4.22	$ 5.57
Weighted-average common shares outstanding during the period (shares)	59.2	61.1	59.7	61.3
Diluted income per common share:
Income from continuing operations (USD per share)	$ 2.53	$ 2.06	$ 4.17	$ 4.40
Income (loss) from discontinued operations (USD per share)	0.00	1.38	(0.01)	1.10
Diluted Income per common share (USD per share)	$ 2.53	$ 3.44	$ 4.16	$ 5.50
Weighted-average common shares outstanding during the period plus dilutive potential common shares (shares)	60.0	61.9	60.6	62.2
Dividends declared per common share (USD per share)	$ 0.50	$ 0.47	$ 1.50	$ 1.410