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Capital Structure - Summary of Changes in Shares Repurchased (Details) - USD ($)
$ / shares in Units, $ in Millions
 1 Months Ended 12 Months Ended
Feb. 01, 2024
Jan. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares)     22,730,940 14,685,521 1,084,752
Shares repurchased, excise tax accrued     $ 10    
Subsequent Event          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares)   770,205      
Open market repurchases          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares)     5,054,798 14,685,521 1,084,752
Average price paid per share (in shares)       $ 40.48 $ 40.85
Amounts paid for shares purchased (in millions)     $ 200 $ 595 $ 44
Accrued stock repurchases         $ 5
Accelerated repurchase agreements          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares)     17,676,142    
Amounts paid for shares purchased (in millions)     $ 950    
Accelerated repurchase agreements | Subsequent Event          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares) 770,205        
Amounts paid for shares purchased (in millions) $ 0        
Capital Allocation Plan          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares)     22,730,940    
Amounts paid for shares purchased (in millions)     $ 1,150    
Capital Allocation Plan | Subsequent Event          
Schedule of Capitalization, Equity [Line Items]          
Total number of shares purchased (in shares) 23,501,145        
Amounts paid for shares purchased (in millions) $ 1,150