Guarantor Statements - SB/RH (Statement Of Financial Position) (Details) - USD ($) $ in Millions	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015
Current assets:
Cash and cash equivalents	$ 552.5	$ 270.1	$ 465.2	$ 643.2
Trade receivables, net	254.2	266.0
Other receivables	35.7	19.7
Inventories	503.4	496.3
Prepaid expenses and other	54.7	54.8
Current assets of business held for sale	1,958.2	28,929.2
Total current assets	3,358.7	30,036.1
Property, plant and equipment, net	494.9	503.9
Deferred charges and other	184.0	43.7
Goodwill	2,178.5	2,277.1	2,133.3
Intangible assets, net	1,531.6	1,612.0
Noncurrent assets of business held for sale		1,376.9
Total assets	7,747.7	35,849.7
Current liabilities:
Current portion of long-term debt	21.2	161.4
Accounts payable	436.1	373.1
Accrued wages and salaries	45.7	55.4
Accrued interest	65.0	78.0
Other current liabilities	125.3	125.8
Current liabilities of business held for sale	656.9	26,851.3
Total current liabilities	1,350.2	27,645.0
Long-term debt, net of current portion	4,651.3	5,543.7
Deferred income taxes	35.0	493.2
Other long-term liabilities	121.6	64.8
Noncurrent liabilities of business held for sale		156.1
Total liabilities	6,158.1	33,902.8
Shareholders' equity
Accumulated (deficit) earnings	(180.1)	(925.9)
Accumulated other comprehensive loss	(235.8)	309.0
Total shareholder's equity	1,581.3	758.0
Non-controlling interest	8.3	1,188.9
Total equity	1,589.6	1,946.9	1,817.2	1,588.1
Total liabilities and equity	7,747.7	35,849.7
Eliminations [Member]
Current assets:
Intercompany receivables	(1,931.3)	(1,624.2)
Other receivables		(1.0)
Inventories	(17.7)	(20.4)
Prepaid expenses and other		0.1
Current assets of business held for sale	(4.3)	(4.3)
Total current assets	(1,953.3)	(1,649.8)
Long-term intercompany receivables	(403.2)	(426.3)
Deferred charges and other	(186.3)	(254.4)
Investments in subsidiaries	(6,160.3)	(6,020.4)
Total assets	(8,703.1)	(8,350.9)
Current liabilities:
Current portion of long-term debt	(0.2)	(3.9)
Intercompany accounts payable	(1,913.0)	(1,629.6)
Other current liabilities		(1.0)
Total current liabilities	(1,913.2)	(1,634.5)
Long-term intercompany debt	(421.3)	(417.1)
Deferred income taxes	(191.6)	(260.2)
Total liabilities	(2,526.1)	(2,311.8)
Shareholders' equity
Other capital	534.4	(43.0)
Accumulated (deficit) earnings	(7,117.4)	(6,335.7)
Accumulated other comprehensive loss	406.0	339.6
Total shareholder's equity	(6,177.0)	(6,039.1)
Total equity	(6,177.0)	(6,039.1)
Total liabilities and equity	(8,703.1)	(8,350.9)
Guarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	1.8	4.8	2.5	8.6
Trade receivables, net	84.0	102.4
Intercompany receivables	1,648.3	1,288.1
Other receivables	5.2	4.7
Inventories	223.5	205.6
Prepaid expenses and other	6.2	8.6
Current assets of business held for sale	83.3	0.2
Total current assets	2,052.3	1,614.4
Property, plant and equipment, net	177.2	178.9
Long-term intercompany receivables	70.3	96.6
Deferred charges and other	2.3	3.0
Goodwill	1,372.3	1,463.4
Intangible assets, net	970.9	1,027.7
Investments in subsidiaries	1,262.5	1,290.3
Noncurrent assets of business held for sale		124.4
Total assets	5,907.8	5,798.7
Current liabilities:
Current portion of long-term debt	4.4	4.3
Accounts payable	167.2	108.3
Accrued wages and salaries	2.2	2.3
Other current liabilities	24.2	25.6
Current liabilities of business held for sale	1.4	0.9
Total current liabilities	199.4	141.4
Long-term debt, net of current portion	88.2	92.1
Long-term intercompany debt	295.0	302.1
Deferred income taxes	418.9	523.5
Other long-term liabilities	5.6	6.1
Noncurrent liabilities of business held for sale		3.4
Total liabilities	1,007.1	1,068.6
Shareholders' equity
Other capital	803.7	1,089.9
Accumulated (deficit) earnings	4,303.0	3,814.1
Accumulated other comprehensive loss	(206.0)	(173.9)
Total shareholder's equity	4,900.7	4,730.1
Total equity	4,900.7	4,730.1
Total liabilities and equity	5,907.8	5,798.7
Nonguarantor Subsidiaries [Member]
Current assets:
Cash and cash equivalents	227.0	157.4	168.9	226.3
Trade receivables, net	81.7	78.2
Intercompany receivables	283.0	335.4
Other receivables	15.4	10.6
Inventories	134.4	126.4
Prepaid expenses and other	15.7	14.6
Current assets of business held for sale	809.4	378.4
Total current assets	1,566.6	1,101.0
Property, plant and equipment, net	145.6	142.0
Long-term intercompany receivables	11.6	12.5
Deferred charges and other	63.1	35.6
Goodwill	239.0	245.1
Intangible assets, net	170.7	182.9
Investments in subsidiaries	(2.9)
Noncurrent assets of business held for sale		438.2
Total assets	2,193.7	2,157.3
Current liabilities:
Current portion of long-term debt	2.2	5.2
Accounts payable	144.2	141.1
Intercompany accounts payable	35.0
Accrued wages and salaries	18.3	20.1
Other current liabilities	50.2	44.2
Current liabilities of business held for sale	457.6	322.4
Total current liabilities	707.5	533.0
Long-term debt, net of current portion	11.8	9.4
Long-term intercompany debt	114.7	102.4
Deferred income taxes	51.7	52.0
Other long-term liabilities	45.4	40.4
Noncurrent liabilities of business held for sale		129.9
Total liabilities	931.1	867.1
Shareholders' equity
Other capital	(1,361.8)	(1,075.0)
Accumulated (deficit) earnings	2,814.5	2,521.6
Accumulated other comprehensive loss	(200.0)	(165.2)
Total shareholder's equity	1,252.7	1,281.4
Non-controlling interest	9.9	8.8
Total equity	1,262.6	1,290.2
Total liabilities and equity	2,193.7	2,157.3
Parent [Member]
Current assets:
Cash and cash equivalents	276.6	6.0	99.4	13.0
Trade receivables, net	88.5	85.4
Intercompany receivables		0.7
Other receivables	58.6	4.4
Inventories	163.2	184.7
Prepaid expenses and other	32.5	30.9
Current assets of business held for sale	1,069.8	228.7
Total current assets	1,689.2	540.8
Property, plant and equipment, net	172.1	182.2
Long-term intercompany receivables	321.3	317.2
Deferred charges and other	191.3	244.2
Goodwill	567.2	568.6
Intangible assets, net	390.0	401.4
Investments in subsidiaries	4,900.7	4,730.1
Noncurrent assets of business held for sale		814.3
Total assets	8,231.8	7,798.8
Current liabilities:
Current portion of long-term debt	534.8	13.8
Accounts payable	124.7	122.2
Intercompany accounts payable	1,878.0	1,629.6
Accrued wages and salaries	25.4	27.5
Accrued interest	55.0	48.5
Other current liabilities	43.9	50.1
Current liabilities of business held for sale	197.9	177.3
Total current liabilities	2,859.7	2,069.0
Long-term debt, net of current portion	3,613.4	3,650.8
Long-term intercompany debt	11.6	12.6
Deferred income taxes	52.1	177.9
Other long-term liabilities	69.6	11.5
Noncurrent liabilities of business held for sale		22.8
Total liabilities	6,606.4	5,944.6
Shareholders' equity
Other capital	2,096.7	2,107.1
Accumulated (deficit) earnings	(235.6)	(42.8)
Accumulated other comprehensive loss	(235.7)	(210.1)
Total shareholder's equity	1,625.4	1,854.2
Total equity	1,625.4	1,854.2
Total liabilities and equity	8,231.8	7,798.8
SB/RH [Member]
Current assets:
Cash and cash equivalents	505.4	168.2	270.8	247.9
Trade receivables, net	254.2	266.0
Other receivables	79.2	18.7
Inventories	503.4	496.3
Prepaid expenses and other	54.4	54.2
Current assets of business held for sale	1,958.2	603.0
Total current assets	3,354.8	1,606.4
Property, plant and equipment, net	494.9	503.1
Deferred charges and other	70.4	28.4
Goodwill	2,178.5	2,277.1
Intangible assets, net	1,531.6	1,612.0
Noncurrent assets of business held for sale		1,376.9
Total assets	7,630.2	7,403.9
Current liabilities:
Current portion of long-term debt	541.2	19.4
Accounts payable	436.1	371.6
Accrued wages and salaries	45.9	49.9
Accrued interest	55.0	48.5
Other current liabilities	118.3	118.9
Current liabilities of business held for sale	656.9	500.6
Total current liabilities	1,853.4	1,108.9
Long-term debt, net of current portion	3,713.4	3,752.3
Deferred income taxes	331.1	493.2
Other long-term liabilities	120.6	58.0
Noncurrent liabilities of business held for sale		156.1
Total liabilities	6,018.5	5,568.5
Shareholders' equity
Other capital	2,073.0	2,079.0
Accumulated (deficit) earnings	(235.5)	(42.8)
Accumulated other comprehensive loss	(235.7)	(209.6)
Total shareholder's equity	1,601.8	1,826.6
Non-controlling interest	9.9	8.8
Total equity	1,611.7	1,835.4	$ 1,829.4	$ 1,572.8
Total liabilities and equity	$ 7,630.2	$ 7,403.9