Common Share Repurchases (Details) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
Mar. 31, 2026 USD ($) $ / shares shares
Treasury Stock Transactions, Excluding Value of Shares Reissued [Abstract]
Number of shares repurchased under share repurchase authorization (in shares) \| shares	6.0
Cost of shares repurchased under share repurchase authorization	$ 1,800
Average cost per share repurchased under share repurchase authorization (in dollars per share) \| $ / shares	$ 300.30
Number of shares acquired to cover tax withholding costs and exercise costs (in shares) \| shares	0.6
Cost of shares acquired to cover tax withholding costs and exercise costs	$ 185
Remaining capacity under share repurchase authorization	$ 5,220

Amount of decrease to equity for grantee's tax withholding obligation for award under share-based payment arrangement.

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Number of shares used to settle grantee's tax withholding obligation for award under share-based payment arrangement.

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Amount remaining authorized for purchase of share under share repurchase plan. Includes, but is not limited to, repurchase of stock and unit of ownership.

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Total cost of shares repurchased divided by the total number of shares repurchased.

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Number of shares that have been repurchased during the period and are being held in treasury.

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Equity impact of the cost of common and preferred stock that were repurchased during the period. Recorded using the cost method.

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