Condensed Consolidated Statements of Cash Flows (Unaudited) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Cash flows provided by (used in) operating activities:
Net earnings	$ 176.8	$ 221.1
Adjustments to reconcile net earnings to cash provided by operating activities:
Depreciation and amortization	89.0	101.0
Share-based compensation	12.9	11.2
Income tax benefit from stock option exercises	16.4	20.2
Excess income tax benefit from stock option exercises	(7.8)	(5.4)
Inventory step-up	0.4	2.5
Changes in operating assets and liabilities, net of effect of acquisitions:
Income taxes	(13.3)	(75.6)
Receivables	6.6	5.3
Inventories	(62.2)	(56.6)
Accounts payable and accrued expenses	(149.5)	(56.0)
Other assets and liabilities	22.2	21.1
Net cash provided by operating activities	91.5	188.8
Cash flows provided by (used in) investing activities:
Additions to instruments	(62.4)	(49.4)
Additions to other property, plant and equipment	(34.4)	(31.4)
Purchases of investments	(152.6)	(600.7)
Sales of investments	320.3	583.1
Investments in other assets	(3.0)
Net cash provided by (used in) investing activities	67.9	(98.4)
Cash flows provided by (used in) financing activities:
Proceeds from senior notes	7,628.2
Net proceeds under revolving credit facilities	0.8	0.2
Dividends paid to stockholders	(37.3)	(34.0)
Proceeds from employee stock compensation plans	27.5	138.2
Excess income tax benefit from stock option exercises	7.8	5.4
Debt issuance costs	(58.4)
Repurchase of common stock		(400.5)
Net cash provided by (used in) financing activities	7,568.6	(290.7)
Effect of exchange rates on cash and cash equivalents	(17.8)	2.4
Increase (decrease) in cash and cash equivalents	7,710.2	(197.9)
Cash and cash equivalents, beginning of year	1,083.3	1,080.6
Cash and cash equivalents, end of period	$ 8,793.5	$ 882.7