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Changes in Capital Structure - Narrative (Details) - USD ($)
 1 Months Ended 3 Months Ended 5 Months Ended 6 Months Ended 12 Months Ended
Jul. 31, 2024
Jun. 30, 2023
Jun. 30, 2024
Mar. 31, 2024
Dec. 31, 2023
Mar. 31, 2024
Jun. 30, 2024
Dec. 31, 2023
Nov. 06, 2023
Jun. 22, 2023
Class of Stock [Line Items]                    
Preferred stock, shares authorized (in shares)     10,000,000   10,000,000   10,000,000 10,000,000    
Common stock, shares authorized (in shares)     500,000,000   500,000,000   500,000,000 500,000,000    
Share repurchases [1]     $ 91,000,000              
ESPP, minimum percentage of eligible compensation to purchase shares             1.00%      
ESPP, maximum percentage of eligible compensation             10.00%      
ESPP, exercise price as percentage of fair value             90.00%      
Treasury Stock                    
Class of Stock [Line Items]                    
Share repurchases     $ 91,000,000 [1] $ 117,000,000 [2] $ 117,000,000          
Additional Paid-In Capital                    
Class of Stock [Line Items]                    
Share repurchases [2]       $ (117,000,000)            
November 2023 Accelerated Share Repurchase Agreements                    
Class of Stock [Line Items]                    
Accelerated share repurchases, agreement amount                 $ 950,000,000  
Shares repurchased (in shares)         1,163,230 18,839,372        
November 2023 Accelerated Share Repurchase Agreements | Treasury Stock                    
Class of Stock [Line Items]                    
Share repurchases         $ 833,000,000          
November 2023 Accelerated Share Repurchase Agreements | Additional Paid-In Capital                    
Class of Stock [Line Items]                    
Share repurchases         $ 117,000,000          
Capital Allocation Plan, 2023                    
Class of Stock [Line Items]                    
Shares repurchased (in shares)         17,676,142          
Capital Allocation Plan, 2023                    
Class of Stock [Line Items]                    
Capital allocation policy, target allocation, percentage of cash available for allocation after debt reduction to be returned to shareholders   80.00%                
Stock repurchase program, authorized amount                   $ 2,700,000,000
Share repurchases             $ 90,000,000 $ 1,150,000,000    
Shares repurchased (in shares)             2,277,630 22,730,940    
Capital Allocation Plan, 2023 | Subsequent Event                    
Class of Stock [Line Items]                    
Remaining amount recorded in additional paid in capital $ 1,400,000,000                  
Share repurchases $ 1,326,000,000                  
Shares repurchased (in shares) 26,135,802                  
Capital Allocation Plan, Open Market Repurchases                    
Class of Stock [Line Items]                    
Share repurchases             $ 90,000,000 $ 200,000,000    
Shares repurchased (in shares)             1,114,400 5,054,798    
Capital Allocation Plan, Open Market Repurchases | Subsequent Event                    
Class of Stock [Line Items]                    
Share repurchases $ 86,000,000                  
Shares repurchased (in shares) 1,127,232                  
[1] Includes excise tax accrued of $1 million for the three months ended June 30, 2024
[2] Represents the final settlements of the November 6, 2023 ASR agreements. See Note 9, Changes in Capital Structure for additional information