Consolidated Condensed Statements of Cash Flows - USD ($) $ in Millions	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020	Dec. 31, 2020
Cash Flows from Operating Activities
Net income	$ 1,110.1	$ 1,208.4	$ 3,855.6	$ 4,076.9
Adjustments to Reconcile Net Income to Cash Flows from Operating Activities:
Depreciation and amortization			1,101.9	956.4
Change in deferred income taxes			(709.8)	66.2
Debt extinguishment loss (Note 6)	405.2	0.0	405.2	0.0
Stock-based compensation expense			267.5	220.3
Net investment gains			(271.1)	(909.5)
Acquired in-process research and development (Note 3)	174.0	0.0	498.3	294.1
Other changes in operating assets and liabilities, net of acquisitions and divestitures			(548.1)	(232.2)
Other non-cash operating activities, net			504.7	212.2
Net Cash Provided by Operating Activities			5,104.2	4,684.4
Cash Flows from Investing Activities
Net purchases of property and equipment			(1,018.4)	(933.2)
Proceeds from sales and maturities of short-term investments			46.6	118.8
Purchases of short-term investments			(27.9)	(11.4)
Proceeds from sales of noncurrent investments			537.2	574.1
Purchases of noncurrent investments			(710.1)	(223.7)
Cash paid for acquisitions, net of cash acquired (Note 3)			(747.4)	(849.3)
Purchases of in-process research and development			(460.6)	(276.4)
Other investing activities, net			(2.7)	16.3
Net Cash Used for Investing Activities			(2,383.3)	(1,584.8)
Cash Flows from Financing Activities
Dividends paid			(2,313.5)	(2,017.1)
Net change in short-term borrowings			(1.5)
Net change in short-term borrowings				(914.3)
Proceeds from issuance of long-term debt			2,410.8	2,062.3
Repayments of long-term debt			(1,905.3)	(276.3)
Purchases of common stock			(500.0)	(500.0)
Other financing activities, net			(295.3)	(200.2)
Net Cash Used for Financing Activities			(2,604.8)	(1,845.6)
Effect of exchange rate changes on cash and cash equivalents			15.0	3.8
Net increase in cash and cash equivalents			131.1	1,257.8
Cash and cash equivalents at January 1			3,657.1	2,337.5	$ 2,337.5
Cash and Cash Equivalents at September 30	$ 3,788.2	$ 3,595.3	$ 3,788.2	$ 3,595.3	$ 3,657.1