XML 48 R35.htm IDEA: XBRL DOCUMENT v3.22.0.1
Goodwill (Tables)
12 Months Ended
Dec. 31, 2021
Goodwill And Intangible Assets Disclosure [Abstract]  
Changes in Carrying Amount of Goodwill

​

​

​

​

​

​

​

​

​

​

​

​

​

Operating segment

​

​

​

​

​

​

​

​

Component

​

​

​

​

    

Chemicals

    

Products

    

Total

​

​

(In millions)

Balance at December 31, 2019, 2020 and 2021

​

$

352.6

​

$

27.1

​

$

379.7