XML 108 R94.htm IDEA: XBRL DOCUMENT v3.20.4
STOCK-BASED COMPENSATION - Phantom Stock Awards and Stock Appreciation Rights ("SARs") (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Phantom Share Units (PSUs)      
Stock-based compensation      
Recognized expense (income) related to valuation $ 4 $ 4 $ 1
Granted (in shares) 82,630 79,500 98,140
Fair value of stock award granted $ 3 $ 3 $ 4
Cash paid to settle awards 3 3 6
Accrued compensation cost liability 6 5  
Unrecognized compensation cost $ 4 $ 3  
Equivalent common shares (in shares) 0 0  
Stock Appreciation Rights (SARs)      
Stock-based compensation      
Recognized expense (income) related to valuation $ 1    
Granted (in shares) 0 0  
Cash paid to settle awards   $ 2 $ 5
Equity instruments other than options, outstanding (in shares) 0 0