Summary of Charges Recorded in Connection with Restructuring by Reportable Segment (Parenthetical) (Detail) - MAP to Growth - Severance and benefit costs (credits) - Position	12 Months Ended
	May 31, 2022	May 31, 2021	May 31, 2020
Construction Products Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	16	34	112
Performance Coatings Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	7	71	161
Consumer Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated		29	92
SPG Segments
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	18	35	94
Corporate/Other Segment
Restructuring Cost And Reserve [Line Items]
Number of positions eliminated	1		2