Guarantor Statements (Statement Of Financial Position) (Details) - USD ($) $ in Millions	Mar. 31, 2019	Dec. 30, 2018	Sep. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017
Assets
Cash and cash equivalents	$ 176.2		$ 552.5
Trade receivables, net	470.5		317.1
Other receivables	95.5		51.7
Inventories	776.2		583.6
Prepaid expenses and other	66.3		63.2
Current assets of business held for sale			2,402.6
Total current assets	1,584.7		3,970.7
Property, plant and equipment, net	469.8		500.0
Deferred charges and other	161.0		231.8
Investment	237.9
Goodwill	1,449.3		1,454.7
Intangible assets, net	1,583.8		1,641.8
Total assets	5,486.5		7,799.0
Liabilities and Shareholders' Equity
Current portion of long-term debt	16.1		26.9
Accounts payable	450.4		584.7
Accrued wages and salaries	50.3		55.1
Accrued interest	33.6		65.0
Other current liabilities	441.4		159.4
Current liabilities of business held for sale			537.6
Total current liabilities	991.8		1,428.7
Long-term debt, net of current portion	2,342.0		4,624.3
Deferred income taxes	88.5		35.0
Other long-term liabilities	135.6		121.4
Total liabilities	3,557.9		6,209.4
Shareholders' equity
Accumulated (deficit) earnings	387.6		(180.1)
Accumulated other comprehensive loss	(222.3)		(235.8)
Total shareholders' equity	1,919.1		1,581.3
Non-controlling interest	9.5		8.3
Total equity	1,928.6	$ 1,436.6	1,589.6	$ 1,356.9	$ 1,627.6	$ 1,946.9
Total liabilities and equity	5,486.5		7,799.0
Eliminations [Member]
Assets
Intercompany receivables	(2,753.6)		(1,931.3)
Inventories	(14.5)		(12.1)
Current assets of business held for sale			(10.1)
Total current assets	(2,768.1)		(1,953.5)
Long-term intercompany receivables	(82.1)		(403.2)
Deferred charges and other	(139.8)		(195.4)
Investments in subsidiaries	(5,985.2)		(6,160.3)
Total assets	(8,975.2)		(8,712.4)
Liabilities and Shareholders' Equity
Current portion of long-term debt	(0.1)		(0.2)
Intercompany accounts payable	(2,719.5)		(1,913.1)
Other current liabilities			(0.1)
Total current liabilities	(2,719.6)		(1,913.4)
Long-term intercompany debt	(116.1)		(421.4)
Deferred income taxes	(143.7)		(200.6)
Total liabilities	(2,979.4)		(2,535.4)
Shareholders' equity
Other capital	629.7		534.4
Accumulated (deficit) earnings	(7,034.6)		(7,117.4)
Accumulated other comprehensive loss	409.1		406.0
Total shareholders' equity	(5,995.8)		(6,177.0)
Total equity	(5,995.8)		(6,177.0)
Total liabilities and equity	(8,975.2)		(8,712.4)
Guarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	0.7		1.8
Trade receivables, net	126.0		42.9
Intercompany receivables	1,639.5		1,648.3
Other receivables	2.8		1.8
Inventories	260.4		162.6
Prepaid expenses and other	7.5		4.0
Current assets of business held for sale			1,379.0
Total current assets	2,036.9		3,240.4
Property, plant and equipment, net	121.0		122.1
Long-term intercompany receivables	57.3		70.3
Deferred charges and other	0.9		0.6
Goodwill	544.2		611.4
Intangible assets, net	593.2		609.5
Investments in subsidiaries	1,635.0		1,262.5
Total assets	4,988.5		5,916.8
Liabilities and Shareholders' Equity
Current portion of long-term debt	4.5		4.3
Accounts payable	120.6		124.2
Intercompany accounts payable	129.1
Accrued wages and salaries	3.8		1.5
Other current liabilities	19.8		15.3
Current liabilities of business held for sale			157.8
Total current liabilities	277.8		303.1
Long-term debt, net of current portion	54.9		57.3
Long-term intercompany debt			295.0
Deferred income taxes	299.7		357.6
Other long-term liabilities	3.0		3.1
Total liabilities	635.4		1,016.1
Shareholders' equity
Other capital	439.4		803.7
Accumulated (deficit) earnings	4,119.6		4,303.0
Accumulated other comprehensive loss	(205.9)		(206.0)
Total shareholders' equity	4,353.1		4,900.7
Total equity	4,353.1		4,900.7
Total liabilities and equity	4,988.5		5,916.8
Nonguarantor Subsidiaries [Member]
Assets
Cash and cash equivalents	153.9		227.0
Trade receivables, net	169.0		165.3
Intercompany receivables	1,114.1		283.0
Other receivables	51.5		27.6
Inventories	239.6		204.6
Prepaid expenses and other	24.5		23.6
Current assets of business held for sale			482.5
Total current assets	1,752.6		1,413.6
Property, plant and equipment, net	158.1		155.0
Long-term intercompany receivables	11.0		11.6
Deferred charges and other	67.5		68.6
Goodwill	275.2		285.9
Intangible assets, net	251.7		261.9
Investments in subsidiaries	(2.9)		(2.9)
Total assets	2,513.2		2,193.7
Liabilities and Shareholders' Equity
Current portion of long-term debt	9.6		7.8
Accounts payable	234.5		238.1
Intercompany accounts payable	95.3		35.1
Accrued wages and salaries	22.2		29.3
Other current liabilities	276.9		77.8
Current liabilities of business held for sale			298.1
Total current liabilities	638.5		686.2
Long-term debt, net of current portion	12.0		13.8
Long-term intercompany debt	105.2		114.8
Deferred income taxes	63.1		70.6
Other long-term liabilities	59.4		45.8
Total liabilities	878.2		931.2
Shareholders' equity
Other capital	(1,087.9)		(1,361.9)
Accumulated (deficit) earnings	2,915.1		2,814.5
Accumulated other comprehensive loss	(203.3)		(200.0)
Total shareholders' equity	1,623.9		1,252.6
Non-controlling interest	11.1		9.9
Total equity	1,635.0		1,262.5
Total liabilities and equity	2,513.2		2,193.7
Parent [Member]
Assets
Cash and cash equivalents	13.4		276.6
Trade receivables, net	175.5		108.9
Other receivables	108.4		65.7
Inventories	290.7		228.5
Prepaid expenses and other	34.3		35.3
Current assets of business held for sale			551.2
Total current assets	622.3		1,266.2
Property, plant and equipment, net	190.7		222.9
Long-term intercompany receivables	13.8		321.3
Deferred charges and other	118.9		200.4
Investment	237.9
Goodwill	629.9		557.4
Intangible assets, net	738.9		770.4
Investments in subsidiaries	4,353.1		4,900.7
Total assets	6,905.5		8,239.3
Liabilities and Shareholders' Equity
Current portion of long-term debt	2.1		535.0
Accounts payable	102.1		222.4
Intercompany accounts payable	2,495.1		1,878.0
Accrued wages and salaries	24.3		24.6
Accrued interest	33.5		55.0
Other current liabilities	141.8		59.3
Current liabilities of business held for sale			81.7
Total current liabilities	2,798.9		2,856.0
Long-term debt, net of current portion	2,200.3		3,615.3
Long-term intercompany debt	10.9		11.6
Deferred income taxes	175.9		59.4
Other long-term liabilities	73.0		71.5
Total liabilities	5,259.0		6,613.8
Shareholders' equity
Other capital	2,116.0		2,096.8
Accumulated (deficit) earnings	(247.3)		(235.6)
Accumulated other comprehensive loss	(222.2)		(235.7)
Total shareholders' equity	1,646.5		1,625.5
Total equity	1,646.5		1,625.5
Total liabilities and equity	6,905.5		8,239.3
SB/RH [Member]
Assets
Cash and cash equivalents	168.0		505.4
Trade receivables, net	470.5		317.1
Other receivables	162.7		95.1
Inventories	776.2		583.6
Prepaid expenses and other	66.3		62.9
Current assets of business held for sale			2,402.6
Total current assets	1,643.7		3,966.7
Property, plant and equipment, net	469.8		500.0
Deferred charges and other	47.5		74.2
Investment	237.9
Goodwill	1,449.3		1,454.7
Intangible assets, net	1,583.8		1,641.8
Total assets	5,432.0		7,637.4
Liabilities and Shareholders' Equity
Current portion of long-term debt	16.1		546.9
Accounts payable	457.2		584.7
Accrued wages and salaries	50.3		55.4
Accrued interest	33.5		55.0
Other current liabilities	438.5		152.3
Current liabilities of business held for sale			537.6
Total current liabilities	995.6		1,931.9
Long-term debt, net of current portion	2,267.2		3,686.4
Deferred income taxes	395.0		287.0
Other long-term liabilities	135.4		120.4
Total liabilities	3,793.2		6,025.7
Shareholders' equity
Other capital	2,097.2		2,073.0
Accumulated (deficit) earnings	(247.2)		(235.5)
Accumulated other comprehensive loss	(222.3)		(235.7)
Total shareholders' equity	1,627.7		1,601.8
Non-controlling interest	11.1		9.9
Total equity	1,638.8	$ 1,479.0	1,611.7	$ 1,736.1	$ 1,981.0	$ 1,835.4
Total liabilities and equity	$ 5,432.0		$ 7,637.4