Financial Instruments - Long-term Contingent Consideration (Details) - USD ($)	3 Months Ended		12 Months Ended
	Dec. 31, 2019	Mar. 31, 2019	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Derivative Instruments, Gain (Loss)
Change in fair value of contingent consideration			$ (17,400,000)	$ (21,800,000)	$ 3,400,000
Carrying Value
Derivative Instruments, Gain (Loss)
Long term debt, fair value	$ 1,520,000,000		1,520,000,000	5,350,000,000
Estimated Fair Value
Derivative Instruments, Gain (Loss)
Long term debt, fair value	1,580,000,000		1,580,000,000	$ 5,350,000,000
MacDermid
Derivative Instruments, Gain (Loss)
Long-term contingent consideration (up to)	100,000,000		$ 100,000,000
Price performance metrics period			7 years
Change in fair value of contingent consideration		$ 40,000,000.0
Long-term contingent consideration	60,000,000		$ 60,000,000
Payment of contingent consideration, operating			30,900,000
Payment of contingent consideration, financing			9,100,000
Gain on contingent consideration	$ 21,100,000		$ 17,400,000