Segment Information - Schedule of Segment Reporting Information, by Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018	Dec. 31, 2018
Segment Reporting Information [Line Items]
Net sales	$ 2,450.6	$ 2,548.7	$ 6,738.5	$ 7,061.1	$ 9,648.8
Operating Income (Loss)	(634.8)	(7,835.1)	(345.7)	(7,681.2)	(7,606.4)
Total segment assets	15,043.5		15,043.5		15,457.5
Impairment of goodwill and indefinite-lived intangible assets	824.0	8,128.0
Restructuring
Segment Reporting Information [Line Items]
Operating Income (Loss)	(2.9)	(12.4)	(21.3)	(64.1)
Appliances and Cookware
Segment Reporting Information [Line Items]
Net sales	430.1	453.6	1,121.5	1,215.1
Operating Income (Loss)	(595.0)	(1,568.8)	(592.9)	(1,550.2)
Total segment assets	1,610.4		1,610.4		2,134.5
Impairment of goodwill and indefinite-lived intangible assets	606.9	1,604.5
Food and Commercial
Segment Reporting Information [Line Items]
Net sales	473.2	539.4	1,307.4	1,431.2
Operating Income (Loss)	32.8	(1,697.6)	152.8	(1,599.6)
Total segment assets	3,237.6		3,237.6		3,185.8
Impairment of goodwill and indefinite-lived intangible assets	0.0	1,802.1
Home and Outdoor Living
Segment Reporting Information [Line Items]
Net sales	723.2	726.5	2,055.2	2,137.9
Operating Income (Loss)	(180.7)	(4,300.4)	(163.0)	(4,283.2)
Total segment assets	4,101.1		4,101.1		4,103.2
Impairment of goodwill and indefinite-lived intangible assets	217.1	4,370.1
Learning and Development
Segment Reporting Information [Line Items]
Net sales	824.1	829.2	2,254.4	2,274.9
Operating Income (Loss)	182.1	(159.2)	487.6	102.5
Total segment assets	4,805.7		4,805.7		4,882.1
Impairment of goodwill and indefinite-lived intangible assets	0.0	351.3
Other
Segment Reporting Information [Line Items]
Net sales	0.0	0.0	0.0	2.0
Operating Income (Loss)	0.0	1.0	0.0	3.4
Corporate
Segment Reporting Information [Line Items]
Operating Income (Loss)	(71.1)	$ (97.7)	(208.9)	$ (290.0)
Total segment assets	$ 1,288.7		$ 1,288.7		$ 1,151.9