Restructuring Charges (Details) $ in Millions	3 Months Ended
	Mar. 31, 2025 USD ($) ft² numberOfPeople	Mar. 31, 2024 USD ($)
Restructuring Cost and Reserve [Line Items]
Severance and termination costs	$ 80.1	$ 0.0
Lease restructuring costs	70.3	0.6
Other restructuring costs	52.9	0.0
Restructuring charges	203.3	0.6
Restructuring Reserve	$ 61.0
Area of Real Estate Property | ft²	430,000
Restructuring and Related Cost, Number of Positions Eliminated, Inception to Date | numberOfPeople	1,500
Non-cash restructuring charges	$ (109.2)	$ (0.6)
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges	300.0
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
Non-cash restructuring charges	350.0
Non-cash Items [Member]
Restructuring Cost and Reserve [Line Items]
Severance and termination costs	2.2
Lease restructuring costs	70.2
Other restructuring costs	36.8
Restructuring charges	109.2
Cash Payments [Member]
Restructuring Cost and Reserve [Line Items]
Severance and termination costs	32.4
Lease restructuring costs	0.1
Other restructuring costs	0.6
Restructuring charges	33.1
Employee Severance [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	45.5
Lease impairment costs [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	0.0
Other Restructuring [Member]
Restructuring Cost and Reserve [Line Items]
Restructuring Reserve	$ 15.5