CONSOLIDATED BALANCE SHEETS - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Current assets
Cash and cash equivalents	$ 818.3	$ 930.1
Short-term investments (Note 6)	519.2	341.0
Accounts receivable, net (Note 5)	421.6	365.5
Other receivables	40.6	49.1
Inventories (Note 5)	554.9	396.6
Prepaid expenses	60.6	45.9
Other current assets	116.9	111.8
Total current assets	2,532.1	2,240.0
Long-term investments (Note 6)	567.0	532.1
Property, plant, and equipment, net (Note 5)	679.7	580.0
Goodwill (Note 8)	1,126.5	626.1
Other intangible assets, net (Note 8)	468.0	204.8
Deferred income taxes	213.6	203.8
Other assets	108.9	123.2
Total assets	5,695.8	4,510.0
Current liabilities
Accounts payable	116.6	97.1
Accrued and other liabilities (Note 5)	636.6	435.4
Short-term debt (Note 9)	598.0	0.0
Contingent consideration liabilities (Notes 7 and 10)	51.7	0.0
Total current liabilities	1,402.9	532.5
Long-term debt (Note 9)	438.4	822.3
Contingent consideration liabilities (Notes 7 and 10)	192.6	31.6
Taxes payable (Note 16)	394.0	159.5
Uncertain tax positions (Note 16)	164.6	229.8
Other long-term liabilities	147.1	115.3
Commitments and contingencies (Notes 9 and 17)
Stockholders' equity (Note 13)
Preferred stock, $.01 par value, authorized 50.0 shares, no shares outstanding	0.0	0.0
Common stock, $1.00 par value, 350.0 shares authorized, 212.0 and 242.6 shares issued, and 209.7 and 211.6 shares outstanding, respectively	212.0	242.6
Additional paid-in capital	1,166.9	1,167.8
Retained earnings	1,962.1	3,906.3
Accumulated other comprehensive loss	(132.7)	(198.4)
Treasury stock, at cost, 2.3 and 31.0 shares, respectively	(252.1)	(2,499.3)
Total stockholders' equity	2,956.2	2,619.0
Total liabilities and stockholders' equity	$ 5,695.8	$ 4,510.0