Consolidated Statements Of Cash Flows (USD $)	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Cash flows from operating activities:
Net income	$ 328,000,000	$ 509,600,000	$ 461,400,000
Adjustments to reconcile net income to net cash provided by operating activities, net of acquired businesses:
Depreciation and amortization	115,100,000	104,900,000	93,500,000
Legal settlements and commitments, net of payments	230,900,000
Impairment charge for foreign government bonds	11,500,000
Restructuring, net of payments	4,600,000	16,700,000
Acquired in-process research and development	3,500,000	2,600,000	16,100,000
Non-cash charges related to asset dispositions			8,400,000
Insurance settlements, net			7,000,000
Deferred income taxes	(18,300,000)	(2,300,000)	(15,000,000)
Share-based compensation	55,500,000	58,200,000	52,400,000
Inventory reserves and provision for doubtful accounts	18,400,000	21,900,000	17,400,000
Other noncash items	(1,100,000)	(2,800,000)	200,000
Changes in assets and liabilities, net of acquired businesses:
Accounts receivable	(45,000,000)	(29,600,000)	(25,600,000)
Inventories	(14,600,000)	(32,900,000)	(18,500,000)
Current liabilities	31,100,000	17,900,000	13,700,000
Taxes	(1,900,000)	(28,800,000)	16,000,000
Other, net	3,800,000	2,400,000	(7,700,000)
Net cash provided by operating activities	721,500,000	637,800,000	619,300,000
Cash flows from investing activities:
Capital expenditures	(71,400,000)	(51,200,000)	(48,100,000)
Change in restricted cash	(147,100,000)
Payments made for purchases of businesses, net of cash acquired	(539,300,000)	(290,300,000)	(112,600,000)
Payments made for intangibles	(17,900,000)	(13,600,000)	(28,500,000)
Proceeds from sale of foreign government bonds	3,400,000
Net cash used in investing activities	(772,300,000)	(355,100,000)	(189,200,000)
Cash flows from financing activities:
Change in short-term borrowings, net	224,000,000	80,500,000
Proceeds from issuance of long-term debt, net of discount		746,300,000
Purchase of noncontrolling interest		(25,900,000)
Proceeds from exercises under share-based compensation plans, net	102,300,000	32,100,000	18,500,000
Excess tax benefit relating to share-based compensation plans	25,100,000	7,900,000	10,700,000
Purchases of common stock	(280,700,000)	(1,069,900,000)	(342,200,000)
Dividends paid	(64,600,000)	(66,900,000)	(65,400,000)
Other	(2,200,000)	(14,700,000)
Net cash provided by (used in) financing activities	3,900,000	(310,600,000)	(378,400,000)
Effect of exchange rate changes on cash and cash equivalents	1,900,000	(5,100,000)	30,600,000
(Decrease) increase in cash and cash equivalents during the year	(45,000,000)	(33,000,000)	82,300,000
Balance at January 1	641,400,000	674,400,000	592,100,000
Balance at December 31	596,400,000	641,400,000	674,400,000
Cash paid for:
Interest	25,600,000	11,900,000	11,800,000
Income taxes	177,900,000	230,800,000	200,400,000
Noncash transactions:
Purchases of businesses and related costs	70,200,000	5,700,000	10,500,000
Receipt of foreign government bonds	16,800,000
Dividends declared, not paid	16,500,000	15,500,000	16,500,000
Purchase of common stock not settled	$ 14,400,000