Consolidated Statements Of Shareholders' Equity (USD $) In Millions	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Balance at Dec. 31, 2011	$ 23,288.2	$ 3.4	$ 11,679.2	$ 11,490.7	$ 114.9
Balance (in shares) at Dec. 31, 2011		339.4
Net income	1,500.1			1,500.1
Other comprehensive income (loss)	97.3				97.3
Repurchase and retirement of common stock	(1,173.6)	(0.2)	(597.9)	(575.5)	0
Repurchase and retirement of common stock (in shares)	(17.4)	(17.4)
Dividends and dividend equivalents	(191.3)			(191.3)
Issuance of common stock under employee stock plans, net of related tax benefits	123.1	0	123.1	0	0
Issuance of common stock under employee stock plans, net of related tax benefits (in shares)		3.2
Balance at Jun. 30, 2012	23,643.8	3.2	11,204.4	12,224.0	212.2
Balance (in shares) at Jun. 30, 2012		325.2
Balance at Jan. 01, 2013
Net income	1,685.3			1,685.3
Other comprehensive income (loss)	(326.3)				(326.3)
Repurchase and retirement of common stock	(618.8)	0	(332.4)	(286.4)	0
Repurchase and retirement of common stock (in shares)	(9.1)	(9.1)
Convertible debenture tax adjustment	(4.0)		(4.0)
Dividends and dividend equivalents	(228.1)			(228.1)
Issuance of common stock under employee stock plans, net of related tax benefits	221.7	0	221.7	0	0
Issuance of common stock under employee stock plans, net of related tax benefits (in shares)		3.7
Balance at Jun. 30, 2013	$ 24,532.5	$ 3.0	$ 10,738.8	$ 13,817.9	$ (27.2)
Balance (in shares) at Jun. 30, 2013		299.3