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Common Stock Repurchase Program - Repurchases (Detail) - USD ($)
$ / shares in Units, shares in Millions, $ in Millions
 1 Months Ended 3 Months Ended 6 Months Ended
Jul. 31, 2023
May 31, 2023
Jun. 30, 2023
Mar. 31, 2023
Jun. 30, 2023
Jun. 30, 2022
Common stock repurchase program            
Cash paid for repurchase of common stock         $ 620 $ 520
Authorized share repurchases     $ 878   $ 878  
Accelerated Share Repurchase Agreement (ASR) [Member]            
Common stock repurchase program            
Shares repurchased (in shares)   0.4 1.5 1.9    
Cash paid for repurchase of common stock     $ 250 $ 350    
Initial stock repurchase price (in dollars per share)       $ 150.34    
Weighted average final purchase price (in dollars per share)   $ 153.90 $ 163.62      
10b5-1 Plan [Member]            
Common stock repurchase program            
Shares repurchased (in shares)     0.1      
Cash paid for repurchase of common stock     $ 22      
Weighted average final purchase price (in dollars per share)     $ 164.79      
10b5-1 Plan [Member] | Subsequent Event [Member]            
Common stock repurchase program            
Total repurchases (in dollars) $ 2