Acquisitions - Narrative (Details) - USD ($) $ / shares in Units, $ in Thousands		3 Months Ended			6 Months Ended		12 Months Ended
	Jun. 01, 2017	Jun. 30, 2018	Mar. 31, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Income taxes				$ 41,540		$ 41,540
Effect of divestiture on basic net income per common share (in dollars per share)		$ 0.00		$ (0.45)	$ 0.00	$ (0.45)
Effect of divestiture on diluted net income per common share (in dollars per share)		$ 0.00		$ (0.44)	$ 0.00	$ (0.44)
Effect on amortization of intangible assets		$ (73,893)		$ (28,918)	$ (158,942)	$ (35,088)
Goodwill		6,994,206		7,178,113	6,994,206	7,178,113	$ 6,814,345
Interest expense related to acquisition		93,507		56,729	185,054	82,424
North American Industrial Wood Coatings Business | Discontinued Operations
Business Acquisition [Line Items]
Divestiture proceeds	$ 431,000
Income taxes						41,500
Valspar Corporation
Business Acquisition [Line Items]
Acquisition purchase price (in dollars per share)	$ 113
Total purchase price, net of divestiture proceeds	$ 8,900,000
Finite-lived intangible assets		4,922,900	$ 5,071,800		4,922,900
Goodwill		5,888,800	5,654,400		5,888,800
Net sales		1,216,000		381,000	2,284,000	381,000
Profit before tax		108,900		46,600	189,100	46,600
Acquisition-related costs and purchase accounting amortization impacts		115,400			235,200
Acquisition transaction expenses				85,400		93,400
Interest expense related to acquisition		69,100		$ 36,500	$ 137,700	41,500
Pro forma inventory step-up amortization						$ 54,900
Valspar Corporation | The Americas Group
Business Acquisition [Line Items]
Goodwill	2,000,000
Valspar Corporation | Performance Coatings Group
Business Acquisition [Line Items]
Goodwill	2,800,000
Valspar Corporation | Consumer Brands Group
Business Acquisition [Line Items]
Goodwill	$ 1,100,000
Valspar Corporation | Measurement Period Adjustments
Business Acquisition [Line Items]
Effect on amortization of intangible assets		$ 7,700	$ 2,300				$ 5,400
Valspar Corporation | Customer relationships and intellectual property and technology | Minimum
Business Acquisition [Line Items]
Weighted average amortization period	15 years
Valspar Corporation | Customer relationships and intellectual property and technology | Maximum
Business Acquisition [Line Items]
Weighted average amortization period	20 years
Valspar Corporation | Customer Relationships
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 3,200,000
Valspar Corporation | Intellectual Property and Technology
Business Acquisition [Line Items]
Finite-lived intangible assets	$ 1,700,000