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Stockholders' Equity (Narrative) (Details) - USD ($)
$ / shares in Units, $ in Millions
1 Months Ended 3 Months Ended
Feb. 28, 2022
Nov. 02, 2021
Nov. 30, 2022
May 31, 2022
Sep. 30, 2022
Jun. 30, 2022
Mar. 31, 2022
Sep. 30, 2021
Jun. 30, 2021
Mar. 31, 2021
Stockholders Equity [Abstract]                    
Dividends rate per share         $ 1.55 $ 1.27 $ 1.00 $ 0.49 $ 0.34 $ 0.30
Fixed Dividend [Member]                    
Stockholders Equity [Abstract]                    
Percentage Increase In Quarterly Dividend         13.00%   45.00%      
Dividends rate per share         $ 0.18   $ 0.16      
Subsequent Event                    
Stockholders Equity [Abstract]                    
Dividend payable, per share     $ 1.35              
Dividend payable amount     $ 880              
Subsequent Event | Fixed Dividend [Member]                    
Stockholders Equity [Abstract]                    
Dividends rate per share     $ 0.18              
Subsequent Event | Variable Dividend [Member]                    
Stockholders Equity [Abstract]                    
Dividends rate per share     $ 1.17              
Share Repurchase Program [Member]                    
Stockholders Equity [Abstract]                    
Repurchase of common stock $ 1,600 $ 1,000   $ 2,000            
Repurchase program expiration date May 31, 2022 Dec. 31, 2022   May 04, 2023