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Business Segment Information (Narrative) (Details)
 12 Months Ended
Dec. 31, 2021
segment
process_technology
area
Jan. 01, 2021
segment
Dec. 31, 2020
segment
Segment Reporting Information [Line Items]      
Core business segments, number 2 2 3
Non-core business segments, number 1    
Sustainable Technology Solutions      
Segment Reporting Information [Line Items]      
Number of process technologies | process_technology 70    
Number of primary areas | area 4