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Stockholders' Equity - Additional Information (Details) - USD ($)
shares in Millions
3 Months Ended
Mar. 31, 2022
Dec. 31, 2021
Feb. 29, 2016
Class of Stock [Line Items]      
Stock repurchases (in shares) 0.9    
Stock repurchases $ 2,700,000,000    
Stock repurchase, remaining authorized amount $ 9,500,000,000    
Common shares outstanding plus underlying outstanding stock awards (in shares) 523.0 523.0  
Net unrecognized compensation cost related to unvested stock-based compensation arrangements $ 16,400,000,000    
Compensation cost expected to be expensed in next twelve months, percentage 50.00%    
Net unrecognized compensation cost related to unvested stock-based compensation arrangements, weighted average recognition period (in years) 1 year 1 month 6 days    
Estimated forfeiture rate 27.00% 27.00%  
February 2016 Program      
Class of Stock [Line Items]      
Stock repurchase, authorized amount     $ 5,000,000,000
March 2022 Program      
Class of Stock [Line Items]      
Stock repurchase, authorized amount $ 10,000,000,000