EARNINGS PER COMMON SHARE - Schedule of Earnings Per Share (Detail) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2016	Jul. 02, 2016	Apr. 02, 2016	Jan. 02, 2016	Sep. 30, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2014
Earnings Per Share [Abstract]
Income attributable to controlling interest from continuing operations									$ 253.8	$ 138.9	$ 145.8
Income from discontinued operations	$ (6.7)	$ 85.7	$ (16.0)	$ (1.5)	$ 16.7	$ 17.9	$ (14.3)	$ 0.6	61.5	20.9	20.7
Net income attributable to controlling interest	$ (26.6)	$ 213.1	$ 210.1	$ (81.3)	$ (23.6)	$ 133.4	$ 124.6	$ (74.6)	$ 315.3	$ 159.8	$ 166.5
BASIC EARNINGS PER COMMON SHARE:
Weighted-average Common Shares outstanding during the period	60.6	61.1	61.4	61.5	61.4	61.3	60.9	60.8	61.1	61.1	61.6
Income from continuing operations (USD per share)	$ (0.33)	$ 2.09	$ 3.68	$ (1.30)	$ (0.65)	$ 1.89	$ 2.28	$ (1.24)	$ 4.15	$ 2.27	$ 2.37
Income (loss) from discontinued operations (USD per share)	(0.11)	1.40	(0.26)	(0.02)	0.27	0.29	(0.23)	0.01	1.01	0.35	0.33
Basic net income per common share (USD per share)	$ (0.44)	$ 3.49	$ 3.42	$ (1.32)	$ (0.38)	$ 2.18	$ 2.05	$ (1.23)	$ 5.16	$ 2.62	$ 2.70
DILUTED EARNINGS PER COMMON SHARE:
Weighted-average Common Shares outstanding during the period	60.6	61.1	61.4	61.5	61.4	61.3	60.9	60.8	61.1	61.1	61.6
Dilutive potential Common Shares									0.9	1.1	1.1
Weighted-average number of Common Shares outstanding and dilutive potential Common Shares	60.6	61.9	62.2	61.5	61.4	62.3	62.1	60.8	62.0	62.2	62.7
Income from continuing operations (USD per share)	$ (0.33)	$ 2.06	$ 3.64	$ (1.30)	$ (0.65)	$ 1.85	$ 2.24	$ (1.24)	$ 4.09	$ 2.23	$ 2.32
Income (loss) from discontinued operations (USD per share)	(0.11)	1.38	(0.26)	(0.02)	0.27	0.29	(0.23)	0.01	1.00	0.34	0.33
Diluted net income per common share (USD per share)	$ (0.44)	$ 3.44	$ 3.38	$ (1.32)	$ (0.38)	$ 2.14	$ 2.01	$ (1.23)	$ 5.09	$ 2.57	$ 2.65