Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Operating activities:
Net income	$ 1,311.8	$ 767.4	$ 924.0
Reconciliation of net income to cash flows provided by operating activities:
Depreciation	70.2	84.3	96.7
Amortization	102.4	120.4	154.6
Lease expense	26.6	28.7	27.9
Stock-based compensation	30.1	41.5	31.2
Deferred taxes	(60.1)	(71.7)	(33.3)
(Gain) loss on sale of discontinued operations	(454.4)	82.5	(7.0)
Other operating activities, net	29.4	28.8	46.2
Changes in assets and liabilities, excluding effects of acquisitions:
Receivables	69.6	1.5	(25.9)
Inventories	(103.7)	158.0	(165.2)
Contract assets	10.3	13.7	(18.9)
Prepaid expenses and other assets	(16.8)	(24.7)	21.6
Accounts payable	(4.1)	(27.0)	(60.5)
Accrued and other current liabilities	14.5	(10.1)	20.0
Contract liabilities	25.9	23.4	27.4
Other long-term liabilities	(21.4)	(15.4)	(37.9)
Net cash provided by operating activities	1,030.3	1,201.3	1,000.9
Investing activities:
Proceeds from sale of discontinued operations, net of cash disposed	1,998.0	510.6	132.0
Capital expenditures	(113.3)	(142.2)	(183.5)
Acquisitions, net of cash acquired	(676.9)	(36.1)	(24.7)
Investment in securities	20.8	1.1	10.3
Other investing activities, net	1.0	19.0	4.8
Net cash provided by (used in) investing activities	1,229.6	352.4	(61.1)
Financing activities:
Repayments of notes	(400.0)	(300.0)	(350.0)
Borrowings from revolving credit facility	22.0	84.0	0.0
Repayments of revolving credit facility	(22.0)	(84.0)	0.0
Repurchases of common stock	(1,585.9)	(900.0)	(400.0)
Dividends paid	(172.4)	(160.3)	(134.4)
Proceeds from exercise of stock options	80.2	25.7	40.4
Withholding tax paid related to stock-based compensation	(18.1)	(11.7)	(14.7)
Other financing activities, net	(14.0)	(3.4)	(3.3)
Net cash (used in) provided by financing activities	(2,110.2)	(1,349.7)	(862.0)
Effect of foreign currency exchange rate changes on cash and cash equivalents	(1.7)	1.5	(2.2)
Change in cash and cash equivalents	148.0	205.5	75.6
Less: change in cash and cash equivalents of discontinued operations	(28.8)	(6.4)	9.9
Cash and cash equivalents at beginning of period	576.7	364.8	299.1
Cash and cash equivalents at end of period	$ 753.5	$ 576.7	$ 364.8