Other Financial Information - Prepaid Expenses and Other Current Assets (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024
Disaggregation of Revenue [Line Items]
Contract manufacturer deposits	$ 121.3		$ 127.1
Prepaid expenses	134.0		156.9
Other current assets	180.8		183.6
Total prepaid expenses and other current assets	436.1		$ 467.6
Accounts Receivable
Disaggregation of Revenue [Line Items]
Allowance for credit loss	$ 0.0	$ 7.7