Restructuring Costs - Schedule of Restructuring Costs Incurred by Reportable Business 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
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	$ 2.9	$ 12.4	$ 21.3	$ 64.1	$ 83.1
Corporate
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	0.5	5.4	4.9	28.2
Appliances and Cookware | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	0.0	1.3	2.1	3.2
Food and Commercial | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	0.3	1.8	3.0	4.4
Home and Outdoor Living | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	2.1	3.9	6.6	24.4
Learning and Development | Operating Segments
Restructuring Cost and Reserve [Line Items]
Restructuring Costs, Net	$ 0.0	$ 0.0	$ 4.7	$ 3.9