Annual report pursuant to Section 13 and 15(d)

EQUITY (Common Stock Narrative) (Details)

v3.22.0.1
EQUITY (Common Stock Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock issued in connection with stock incentive plans 2,300,000 3,200,000 1,300,000  
Shares available for future grants (in shares) 16,600,000      
2.5% Convertible Senior Notes Due 2019 [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Shares issued in connection with the conversion of convertible debt   800,000    
Interest rate, stated percentage   2.50%    
Conversion of convertible debt   $ 28.6    
Stock Option [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock options currently granted 7,720,000 9,323,000 11,347,000 11,784,000
Restricted Stock [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unvested stock awards 860,244 1,589,073 1,170,000 1,399,000
Market Based Stock Award [Member]        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Unvested stock awards 2,192,000 2,367,000