Shareholders' Equity - Schedule of Stock Option and RSU Award Activity (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	12 Months Ended
Mar. 31, 2026	Dec. 31, 2025
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options outstanding, beginning balance (in shares)	10,200,678
Stock options granted (in shares)	2,223,132
Stock options exercised (in shares)	(202,056)
Stock options forfeited (in shares)	(10,345)
Stock options outstanding, ending balance (in shares)	12,211,409	10,200,678
Stock options exercisable (in shares)	5,025,058
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted average exercise price of stock options outstanding, beginning (in dollars per share)	$ 80.03
Weighted average exercise price of stock options granted (in dollars per share)	116.07
Weighted average exercise price of stock options exercised (in dollars per share)	31.55
Weighted average exercise price of stock options forfeited (in dollars per share)	107.87
Weighted average exercise price of stock options outstanding, ending (in dollars per share)	87.37	$ 80.03
Weighted average exercise price of stock options exercisable (in dollars per share)	$ 73.64
Share-based Compensation Arrangement by Share-based Payment Award, Options, Remaining Contractual Term [Abstract]
Remaining contractual term of stock options outstanding	7 years 6 months 10 days	7 years 2 months 19 days
Remaining contractual term of stock options exercisable	5 years 9 months 7 days
Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]
Aggregate intrinsic value of stock options outstanding, beginning	$ 826
Aggregate intrinsic value of stock options outstanding, ending	382	$ 826
Aggregate intrinsic value of stock exercisable	$ 229
Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value of stock options outstanding, beginning (in dollars per share)	$ 0
Weighted average grant date fair value of stock options granted (in dollars per share)	53.58
Weighted average grant date fair value of stock options outstanding, ending (in dollars per share)	$ 0	$ 0
Stock Option Plan \| Class A Subordinate Voting
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options exercisable (in shares)	12,200,273
Deliverr Inc. \| Class A Subordinate Voting
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Stock options exercisable (in shares)	11,136
Restricted share units
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other Than Options, Outstanding [Roll Forward]
RSUs outstanding, beginning (in shares)	3,486,886
RSUs granted (in shares)	1,525,623
RSUs settled (in shares)	(886,692)
RSUs forfeited (in shares)	(67,263)
RSUs outstanding, ending (in shares)	4,058,554	3,486,886
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted average grant date fair value of RSUs outstanding, beginning (in dollars per share)	$ 110.16
Weighted average grant date fair value of RSUs granted (in dollars per share)	124.28
Weighted average grant date fair value of RSUs settled (in dollars per share)	122.20
Weighted average grant date fair value of RSUs settled (in dollars per share)	107.16
Weighted average grant date fair value of RSUs outstanding, ending (in dollars per share)	$ 112.89	$ 110.16

Share-based Compensation Arrangement by Share-based Payment Award, Options, Aggregate Intrinsic Value [Abstract]

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Share-based Compensation Arrangement by Share-based Payment Award, Options, Weighted Average Grant Date Fair Value [Abstract]

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

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The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

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Gross number of share options (or share units) granted during the period.

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The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average grant-date fair value of non-vested options outstanding.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Number of share options (or share units) exercised during the current period.

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