Restructuring Costs - Schedule of Restructuring Costs Incurred by Reportable Business Segment (Detail) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 11.4	$ 35.5	$ 62.5	$ 68.4
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	5.4	27.8	28.2	40.1
Food and Appliances Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	2.1	2.7	6.0	6.8
Home and Outdoor Living Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs	$ 3.9	1.1	24.4	8.6
Learning and Development Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs		2.7	$ 3.9	10.3
Other Segment [Member] | Operating Segments [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring costs		$ 1.2		$ 2.6