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Stockholders' Equity - Stock Repurchase Programs, Treasury Shares, and Dividends on Common Stock (Details) - USD ($)
$ / shares in Units, shares in Thousands
1 Months Ended 3 Months Ended
Nov. 30, 2021
Oct. 31, 2021
Oct. 31, 2020
Aug. 20, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Common stock repurchased (in shares)   606    
Stock repurchases under stock repurchase programs   $ 338,000,000    
Stock repurchases under stock repurchase programs settled after period end   20,000,000    
Stock repurchase program, remaining authorized repurchase amount   $ 3,000,000,000   $ 2,000,000,000
Common stock, dividends, per share, cash paid (in dollars per share)   $ 0.68    
Dividends declared   $ 191,000,000 $ 157,000,000  
Cash dividends declared per common share (in dollars per share)   $ 0.68 $ 0.59  
Treasury Stock        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Stock repurchases under stock repurchase programs   $ 338,000,000    
Subsequent Event        
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]        
Cash dividends declared per common share (in dollars per share) $ 0.68