Common Share Repurchases (Details) $ / shares in Units, $ in Millions |
3 Months Ended | 6 Months Ended |
|---|---|---|
|
Jun. 30, 2024
USD ($)
$ / shares
shares
|
Jun. 30, 2024
USD ($)
$ / shares
shares
|
|
| Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract] | ||
| Number of shares repurchased under share repurchase authorization (in shares) | shares | 1,100,000 | 2,300,000 |
| Cost of shares repurchased under share repurchase authorization | $ 250 | $ 500 |
| Average cost per share repurchased under share repurchase authorization (in dollars per share) | $ / shares | $ 211.22 | $ 214.22 |
| Number of shares acquired to cover tax withholding costs and exercise costs (in shares) | shares | 12,170 | 700,000 |
| Cost of shares acquired to cover tax withholding costs and exercise costs | $ 3 | $ 141 |
| Remaining capacity under share repurchase authorization | $ 5,540 | $ 5,540 |