Consolidated Condensed Statements of Cash Flows (USD $)	6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012
Cash Flows from Operating Activities
Net income	$ 2,754,200,000	$ 1,934,700,000
Adjustments to Reconcile Net Income to Cash Flows from Operating Activities:
Depreciation and amortization	745,400,000	747,900,000
Change in deferred income taxes	(198,900,000)	(150,700,000)
Stock-based compensation expense	68,800,000	65,800,000
Income related to transfer of exenatide rights	(495,400,000)	0
Other changes in operating assets and liabilities, net of acquisitions and divestitures	1,271,500,000	759,800,000
Other operating activities, net	16,200,000	19,200,000
Net Cash Provided by Operating Activities	2,016,600,000	2,158,500,000
Cash Flows from Investing Activities
Net purchases of property and equipment	(294,300,000)	(310,200,000)
Proceeds from sales and maturities of short-term investments	1,981,900,000	1,385,300,000
Purchases of short-term investments	(515,600,000)	(776,600,000)
Proceeds from sales and maturities of noncurrent investments	5,463,200,000	2,451,300,000
Purchases of noncurrent investments	(6,476,100,000)	(3,476,600,000)
Purchase of product rights	0	(67,900,000)
Cash paid for acquisitions, net of cash acquired	0	(199,300,000)
Other investing activities, net	(55,700,000)	(43,600,000)
Net Cash Provided by (Used for) Investing Activities	103,400,000	(1,037,600,000)
Cash Flows from Financing Activities
Dividends paid	(1,064,100,000)	(1,095,000,000)
Net change in short-term borrowings	0	(6,700,000)
Repayment of long-term debt	(1,700,000)	(1,508,000,000)
Purchases of common stock	(1,198,100,000)	0
Net Cash Used for Financing Activities	(2,263,900,000)	(2,609,700,000)
Effect of exchange rate changes on cash and cash equivalents	(88,400,000)	(87,900,000)
Net decrease in cash and cash equivalents	(232,300,000)	(1,576,700,000)
Cash and cash equivalents at January 1	4,018,800,000	5,922,500,000
Cash and Cash Equivalents at June 30	$ 3,786,500,000	$ 4,345,800,000