Stock-based Compensation Expense - Summary of the Company's Restricted Unit Activity (Details) - $ / shares shares in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Unvested Restricted Units [Roll Forward]
Unvested, beginning balance (shares)	0.7
Granted (shares)	0.4
Vested (shares)	(0.4)
Forfeited (shares)	(0.1)
Unvested, ending balance (shares)	0.6	0.7
Restricted Units, Additional Disclosures [Abstract]
Unvested, weighted average grant-date fair value, beginning (in dollars per share)	$ 495.39
Granted (in dollars per share)	545.73	$ 520.83	$ 444.61
Vested (in dollars per share)	480.45
Forfeited (in dollars per share)	528.59
Unvested, weighted average grant-date fair value, ending (in dollars per share)	$ 533.65	$ 495.39
Restricted Stock Units (RSUs) | Minimum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	3 years
Restricted Stock Units (RSUs) | Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Vesting period	4 years