XML 72 R58.htm IDEA: XBRL DOCUMENT v3.22.0.1
Stockholders' Equity (Details)
$ / shares in Units, shares in Millions
 3 Months Ended 12 Months Ended
Dec. 04, 2020
$ / shares
shares
Dec. 08, 2017
USD ($)
Mar. 31, 2020
$ / shares
shares
Dec. 31, 2020
USD ($)
shares
Dec. 31, 2019
USD ($)
shares
Dec. 31, 2018
agreement
$ / shares
Dec. 31, 2021
shares
Sep. 19, 2019
USD ($)
Class of Stock [Line Items]                
Stock repurchase program, period in force   2 years            
Stock repurchase program, authorized amount | $   $ 750,000,000           $ 800,000,000
ASR agreements | agreement           4    
Payments for repurchase of common stock | $       $ 160,000,000 $ 535,000,000      
Treasury stock, shares, acquired (in shares)     13.0 13.0 28.1      
Accelerated share repurchases, final price paid (in dollars per share) | $ / shares           $ 19.02    
Sale of stock, price (in dollars per share) | $ / shares     $ 12.27          
Shares Issued, Price (in dollars per share) | $ / shares $ 14.40              
Common stock reserved for issuance (in shares)             21.8  
Treasury stock, shares (in shares)       158.0     158.5  
Common Stock                
Class of Stock [Line Items]                
Stock issued during period, shares, new issues (in shares) 42.0