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Stock Repurchases (Details) - USD ($)
shares in Millions
1 Months Ended 2 Months Ended 3 Months Ended 6 Months Ended
May 31, 2022
Feb. 28, 2022
Jun. 30, 2022
Apr. 25, 2022
Jun. 30, 2022
Jun. 30, 2021
Jul. 09, 2021
Stock repurchase program, authorized amount     $ 4,000,000,000   $ 4,000,000,000   $ 1,000,000,000
Stock repurchase program, remaining authorized amount     $ 546,000,000   546,000,000    
Stock repurchased during period, value $ 100,000,000 $ 200,000,000          
Percentage of accelerated share repurchases of shares expected to be repurchased 85.00% 87.00%          
Stock repurchased during period, shares (in shares)     0.5 0.8      
Shares repurchased from employees who surrendered shares to satisfy minimum tax withholding obligations, value         $ 5,100,000 $ 10,200,000