Quarterly Results (Schedule Of Quarterly Results) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended								12 Months Ended
	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2017
Revenue	$ 993.0	$ 1,022.2	$ 906.7	$ 880.3	$ 974.4	$ 1,029.4	$ 882.6	$ 922.3	$ 3,802.1	$ 3,808.7	$ 3,706.5
Gross profit	334.7	361.0	305.5	305.7	346.9	362.7	306.0	318.6	1,306.9	1,334.3	1,336.4
Net (loss) income from continuing operations	(79.0)	(24.7)	(55.0)	(29.3)	(34.1)	382.9	(32.6)	40.3	(188.0)	356.5	(90.6)
Income from discontinued operations, net of tax	(39.3)	(1.2)	783.6	(83.2)	(81.7)	22.7	3.7	467.1	659.9	411.8	196.6
Net income									473.2	872.0	273.2
Net income attributable to controlling interest	$ (118.3)	$ (25.9)	$ 728.6	$ (112.5)	$ (115.8)	$ 405.6	$ (28.9)	$ 507.4	$ 471.9	$ 768.3	$ 106.0
Earnings Per Share
Basic earnings per share from continuing operations	$ (1.62)	$ (0.51)	$ (1.06)	$ (0.56)	$ (0.68)	$ 11.69	$ (1.00)	$ 1.24	$ (3.71)	$ 9.64	$ (2.81)
Basic earnings per share from discontinued operations	(0.81)	(0.02)	15.13	(1.55)	(1.64)	0.70	0.11	14.45	13.02	11.15	6.10
Basic earnings per share	(2.43)	(0.53)	14.07	(2.11)	(2.32)	12.39	(0.89)	15.69	9.31	20.79	3.29
Diluted earnings per share from continuing operations	(1.62)	(0.51)	(1.06)	(0.56)	(0.68)	11.68	(1.00)	1.23	(3.71)	9.62	(2.81)
Diluted earnings per share from discontinued operations	(0.81)	(0.02)	15.13	(1.55)	(1.64)	0.69	0.11	14.32	13.02	11.12	6.10
Diluted earnings per share	$ (2.43)	$ (0.53)	$ 14.07	$ (2.11)	$ (2.32)	$ 12.37	$ (0.89)	$ 15.55	$ 9.31	$ 20.74	$ 3.29
SB/RH [Member]
Revenue	$ 993.0	$ 1,022.2	$ 906.7	$ 880.3
Gross profit	334.7	361.0	305.5	305.7					$ 1,306.9	$ 1,334.3	$ 1,335.3
Net (loss) income from continuing operations	(79.7)	(28.9)	(13.4)	(19.2)					(141.2)	205.5	180.9
Income from discontinued operations, net of tax	(39.3)	(1.2)	783.6	(83.2)					659.9	(24.0)	119.0
Net income									520.0	182.9	301.2
Net income attributable to controlling interest	$ (119.0)	$ (30.1)	$ 770.2	$ (102.4)					$ 518.7	$ 181.5	$ 299.9
SB/RH [Member] | Quarter Ended September 30, 2018 [Member]
Revenue					$ 974.4
Gross profit					346.9
Net (loss) income from continuing operations					(2.0)
Income from discontinued operations, net of tax					(84.6)
Net income attributable to controlling interest					$ (86.6)
SB/RH [Member] | Quarter Ended July 1, 2018 [Member]
Revenue						$ 1,029.4
Gross profit						362.7
Net (loss) income from continuing operations						45.8
Income from discontinued operations, net of tax						27.8
Net income attributable to controlling interest						$ 73.6
SB/RH [Member] | Quarter Ended April 1, 2018 [Member]
Revenue							$ 882.6
Gross profit							306.0
Net (loss) income from continuing operations							14.7
Income from discontinued operations, net of tax							11.3
Net income attributable to controlling interest							$ 26.0
SB/RH [Member] | Quarter Ended December 31, 2017 [Member]
Revenue								$ 922.3
Gross profit								318.6
Net (loss) income from continuing operations								147.0
Income from discontinued operations, net of tax								21.5
Net income attributable to controlling interest								$ 168.5