Restructuring Costs - Schedule of Restructuring Costs Incurred by Reportable Business Segment (Detail) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 80.5	$ 87.6	$ 62.2
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	35.3	55.6	20.9
Food and Appliances Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	6.8	8.6	13.7
Home and Outdoor Living Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	30.5	9.3	5.9
Learning and Development Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 7.9	10.9	13.9
Other Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 3.2	$ 7.8