Guarantor Statements - SB/RH (Statement Of Cash Flows) (Details) - USD ($) $ in Millions	12 Months Ended
Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	$ 73.9	$ 155.1	$ 274.1
Net cash provided by operating activities from discontinued operations	269.2	685.0	639.2
Net cash (used) provided by operating activities	343.1	840.1	913.3
Cash flows from investing activities
Purchases of property, plant and equipment	(64.7)	(77.8)	(61.0)
Proceeds from sales of property, plant and equipment	2.8	3.9	19.6
Business acquisitions, net of cash acquired		(304.7)
Other investing activities, net	(0.5)	(1.5)	(3.0)
Net cash provided (used) by investing activities from continuing operations	1,484.4	(349.2)	161.6
Net cash used by investing activities from discontinued operations	(211.6)	(1,253.2)	(1,053.0)
Net cash provided (used) by investing activities	1,272.8	(1,602.4)	(891.4)
Cash flows from financing activities
Proceeds from issuance of debt	19.6	315.6	484.4
Payment of debt	(1,066.0)	(251.9)	(1,087.1)
Payment of debt issuance costs	(0.4)	(7.0)	(9.3)
Share based award tax withholding payments, net of proceeds	(24.3)	(40.8)	(28.7)
Net cash (used) provided by financing activities from continuing operations	(1,389.4)	(282.5)	(727.0)
Net cash provided (used) by financing activities from discontinued operations	100.6	865.5	875.7
Net cash (used) provided by financing activities	(1,288.8)	583.0	148.7
Effect of exchange rate changes on cash and cash equivalents due to Venezuela devaluation		(0.4)
Effect of exchange rate changes on cash and cash equivalents	(7.0)	3.1	(1.4)
Net changes in cash and cash equivalents	320.1	(176.6)	169.2
Cash and cash equivalents, beginning of period	270.1	465.2	643.2
Cash and cash equivalents, end of period	552.5	270.1	465.2
Parent [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	(328.1)	625.0	(392.4)
Net cash provided by operating activities from discontinued operations	18.8	22.0	21.7
Net cash (used) provided by operating activities	(309.3)	647.0	(370.7)
Cash flows from investing activities
Purchases of property, plant and equipment	(22.8)	(26.4)	(25.4)
Proceeds from sales of property, plant and equipment	0.7	0.2	0.1
Business acquisitions, net of cash acquired		(304.7)
Net cash provided (used) by investing activities from continuing operations	(22.1)	(330.9)	(25.3)
Net cash used by investing activities from discontinued operations	(18.8)	(21.0)	(20.8)
Net cash provided (used) by investing activities	(40.9)	(351.9)	(46.1)
Cash flows from financing activities
Proceeds from issuance of debt	520.0	250.0	491.5
Payment of debt	(52.3)	(213.9)	(862.8)
Payment of debt issuance costs	(0.4)	(5.9)	(9.3)
Purchase of non-controlling interest		(12.6)
Payment of cash dividends to parent	(374.2)	(350.8)	(97.2)
Payment of contingent consideration			(3.2)
Advances related to intercompany transactions	527.7	(54.3)	985.1
Net cash (used) provided by financing activities from continuing operations	620.8	(387.5)	504.1
Net cash provided (used) by financing activities from discontinued operations		(1.0)	(0.9)
Net cash (used) provided by financing activities	620.8	(388.5)	503.2
Net changes in cash and cash equivalents	270.6	(93.4)	86.4
Cash and cash equivalents, beginning of period	6.0	99.4	13.0
Cash and cash equivalents, end of period	276.6	6.0	99.4
SB/RH [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	180.6	323.0	448.3
Net cash provided by operating activities from discontinued operations	171.9	324.6	153.3
Net cash (used) provided by operating activities	352.5	647.6	601.6
Cash flows from investing activities
Purchases of property, plant and equipment	(64.7)	(77.8)	(60.7)
Proceeds from sales of property, plant and equipment	2.8	3.9	0.9
Business acquisitions, net of cash acquired		(304.7)
Other investing activities, net	(0.5)	(1.5)	(3.2)
Net cash provided (used) by investing activities from continuing operations	(62.4)	(380.1)	(63.0)
Net cash used by investing activities from discontinued operations	(36.8)	(36.5)	(35.4)
Net cash provided (used) by investing activities	(99.2)	(416.6)	(98.4)
Cash flows from financing activities
Proceeds from issuance of debt	539.6	265.6	498.4
Payment of debt	(59.5)	(223.3)	(864.4)
Payment of debt issuance costs	(0.4)	(5.9)	(9.3)
Purchase of non-controlling interest		(12.6)
Payment of cash dividends to parent	(374.2)	(350.8)	(97.2)
Payment of contingent consideration			(3.2)
Net cash (used) provided by financing activities from continuing operations	105.5	(327.0)	(475.7)
Net cash provided (used) by financing activities from discontinued operations	(14.6)	(9.3)	(3.2)
Net cash (used) provided by financing activities	90.9	(336.3)	(478.9)
Effect of exchange rate changes on cash and cash equivalents due to Venezuela devaluation		(0.4)
Effect of exchange rate changes on cash and cash equivalents	(7.0)	3.1	(1.4)
Net changes in cash and cash equivalents	337.2	(102.6)	22.9
Cash and cash equivalents, beginning of period	168.2	270.8	247.9
Cash and cash equivalents, end of period	505.4	168.2	270.8
Guarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	49.0	164.5	412.7
Net cash provided by operating activities from discontinued operations	0.1
Net cash (used) provided by operating activities	49.1	164.5	412.7
Cash flows from investing activities
Purchases of property, plant and equipment	(18.5)	(25.4)	(12.7)
Proceeds from sales of property, plant and equipment	0.1	0.3
Other investing activities, net	(0.2)	(1.2)	(3.2)
Net cash provided (used) by investing activities from continuing operations	(18.6)	(26.3)	(15.9)
Net cash used by investing activities from discontinued operations	(0.1)
Net cash provided (used) by investing activities	(18.7)	(26.3)	(15.9)
Cash flows from financing activities
Advances related to intercompany transactions	(33.4)	(135.9)	(402.9)
Net cash (used) provided by financing activities from continuing operations	(33.4)	(135.9)	(402.9)
Net cash (used) provided by financing activities	(33.4)	(135.9)	(402.9)
Net changes in cash and cash equivalents	(3.0)	2.3	(6.1)
Cash and cash equivalents, beginning of period	4.8	2.5	8.6
Cash and cash equivalents, end of period	1.8	4.8	2.5
Nonguarantor Subsidiaries [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	800.0	(153.4)	(132.0)
Net cash provided by operating activities from discontinued operations	32.5	23.8	16.8
Net cash (used) provided by operating activities	832.5	(129.6)	(115.2)
Cash flows from investing activities
Purchases of property, plant and equipment	(23.4)	(26.0)	(22.6)
Proceeds from sales of property, plant and equipment	2.0	3.4	0.8
Other investing activities, net	(0.3)	(0.3)
Net cash provided (used) by investing activities from continuing operations	(21.7)	(22.9)	(21.8)
Net cash used by investing activities from discontinued operations	(17.9)	(15.5)	(14.6)
Net cash provided (used) by investing activities	(39.6)	(38.4)	(36.4)
Cash flows from financing activities
Proceeds from issuance of debt	19.6	15.6	6.9
Payment of debt	(7.2)	(9.4)	(1.6)
Advances related to intercompany transactions	(714.1)	155.9	92.6
Net cash (used) provided by financing activities from continuing operations	(701.7)	162.1	97.9
Net cash provided (used) by financing activities from discontinued operations	(14.6)	(8.3)	(2.3)
Net cash (used) provided by financing activities	(716.3)	153.8	95.6
Effect of exchange rate changes on cash and cash equivalents due to Venezuela devaluation		(0.4)
Effect of exchange rate changes on cash and cash equivalents	(7.0)	3.1	(1.4)
Net changes in cash and cash equivalents	69.6	(11.5)	(57.4)
Cash and cash equivalents, beginning of period	157.4	168.9	226.3
Cash and cash equivalents, end of period	227.0	157.4	168.9
Eliminations [Member]
Condensed Cash Flow Statements, Captions [Line Items]
Net cash (used) provided by operating activities from continuing operations	(340.3)	(313.1)	560.0
Net cash provided by operating activities from discontinued operations	120.5	278.8	114.8
Net cash (used) provided by operating activities	(219.8)	(34.3)	674.8
Cash flows from financing activities
Advances related to intercompany transactions	219.8	34.3	(674.8)
Net cash (used) provided by financing activities from continuing operations	219.8	34.3	(674.8)
Net cash (used) provided by financing activities	$ 219.8	$ 34.3	$ (674.8)

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- Definition

The cash inflow from a debt initially having maturity due after one year or beyond the operating cycle, if longer.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3255-108585

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The cash inflow from the sale of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 12
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3179-108585

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- Definition

The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer.

+ References

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