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Stock Plans - Share Repurchase Program (Details) - USD ($)
$ / shares in Units, shares in Millions
1 Months Ended 3 Months Ended 9 Months Ended 108 Months Ended
Oct. 31, 2022
Sep. 30, 2022
Sep. 30, 2021
Sep. 30, 2022
Sep. 30, 2021
Dec. 31, 2021
Dec. 02, 2020
Class of Stock [Line Items]              
Common shares repurchased   $ 338,000,000 $ 326,000,000 $ 1,843,000,000 $ 1,794,000,000    
Payments for repurchase of common Stock       1,838,000,000 $ 1,824,000,000    
Common Stock              
Class of Stock [Line Items]              
Common shares repurchased       $ 1,800,000,000      
Number of shares repurchased (in shares)       29.0      
Average cost of shares repurchased (in dollars per share)       $ 63.78      
Remaining share repurchase capacity   $ 1,800,000,000   $ 1,800,000,000      
Common Stock | Subsequent Event              
Class of Stock [Line Items]              
Payments for repurchase of common Stock $ 20,000,000            
Common Stock | Share Repurchase Program Amended December 2, 2020              
Class of Stock [Line Items]              
Stock repurchase value             $ 23,700,000,000
Common Stock | Prior to January 1, 2022              
Class of Stock [Line Items]              
Common shares repurchased           $ 20,000,000,000