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Common Stock (Details) - USD ($)
$ / shares in Units, shares in Millions
1 Months Ended 9 Months Ended
Sep. 30, 2022
Jul. 31, 2022
Sep. 30, 2022
Sep. 30, 2021
Mar. 23, 2022
Dec. 31, 2021
Equity, Class of Treasury Stock [Line Items]            
Common stock repurchased (in shares)       5.3    
Purchase of treasury shares     $ 1,600,000,000 $ 734,000,000    
Stock-based compensation, shares issued during period (in shares)     3.1 3.1    
Dividends per share (usd per share) $ 0.590          
Increase to quarterly dividend, percent   10.00%        
Approved quarterly dividend (usd per share)   $ 0.590 $ 0.535      
Common Stock            
Equity, Class of Treasury Stock [Line Items]            
Share repurchases program, authorized amount (up to)         $ 5,000,000,000  
Stock repurchase program, remaining authorized repurchase amount $ 4,700,000,000   $ 4,700,000,000     $ 1,300,000,000
Common stock repurchased (in shares)     10.1