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Capital Stock, Dividends and Common Stock Repurchase Program - Repurchases (Detail) - USD ($)
$ / shares in Units, shares in Thousands, $ in Millions
 1 Months Ended 11 Months Ended 12 Months Ended
Jan. 31, 2022
Dec. 31, 2021
Nov. 30, 2021
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Common stock repurchase program            
Shares repurchased (in shares)       9,796 8,731 3,687
Weighted average price per share (in dollars per share)       $ 160.26 $ 146.61 $ 108.92
Total repurchases (in dollars)       $ 1,570 $ 1,280 $ 402
Cash paid for repurchase of common stock       1,500 $ 1,350 $ 402
Authorized share repurchases       $ 1,500    
Accelerated Share Repurchase Agreement (ASR) [Member]            
Common stock repurchase program            
Shares repurchased (in shares) 400 1,700 7,000 8,800   2,800
Cash paid for repurchase of common stock $ 70 $ 350 $ 1,000 $ 1,417   $ 313
Initial stock repurchase price (in dollars per share)   $ 160.67        
Weighted average final purchase price (in dollars per share) $ 160.33          
10b5-1 Plan [Member]            
Common stock repurchase program            
Shares repurchased (in shares)       600   900
Cash paid for repurchase of common stock       $ 83   $ 89