Stock-Based Compensation (Tables)

3 Months Ended

Mar. 31, 2026

Stock-Based Compensation

Schedule of stock option activity

				Weighted
				Average	Aggregate
		Weighted		Remaining	Intrinsic
		Average		Contractual	Value
	Options	Exercise Price		Term (in years)	(in millions)
Options outstanding at January 1, 2026	88,821,121	$	36.62	5.43	$	8,753.6
Options granted	41,924		138.11
Options exercised	(4,082,462)		23.52
Options forfeited	(67,835)		53.92
Options outstanding at March 31, 2026	84,712,748	$	37.29	5.29	$	7,545.2
Vested and non-vested options expected to vest at March 31, 2026	83,146,659	$	36.80	5.24	$	7,446.0
Exercisable options at March 31, 2026	55,722,782	$	27.14	4.12	$	5,528.2

Summary of status of non-vested options and changes during the year

		Weighted
		Average
		Fair Value at
	Options	Grant Date
Non-vested options at January 1, 2026	29,426,936	$	15.58
Options granted	41,924		37.69
Options vested	(411,059)		11.68
Options forfeited	(67,835)		14.88
Non-vested options at March 31, 2026	28,989,966	$	15.67

Summary of activity in the option plans

	Three Months Ended
	March 31,
	2026		2025
Total intrinsic value of stock options exercised	$	504.4	$	140.3
Total fair value of stock options vested		4.8		2.3

Schedule of restricted share activity

Restricted share activity for the three months ended March 31, 2026 was as follows:

				Weighted Average
				Remaining
	Restricted	Fair Value at		Amortization
	Shares	Grant Date		Term (in years)
Restricted shares outstanding at January 1, 2026	16,520	$	86.88	0.37
Restricted shares granted	548		136.25
Restricted shares outstanding at March 31, 2026	17,068	$	88.47	0.13