Consolidated Statement of Shareholders' Equity (Unaudited) (USD $) In Millions, except Share data, unless otherwise specified	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Items [Member]
Balance at Dec. 31, 2010	$ 15,361.0	$ 401.8	$ 10,019.7	$ 5,386.4	$ (490.5)	$ 43.6
Balance (in shares) at Dec. 31, 2010		401,800,000
Balance (in shares) at Dec. 31, 2010					10,400,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employees' and directors' stock plans (in shares)		1,600,000			200,000
Issuance of shares under employees' and directors' stock plans	39.1	1.6	46.2		(8.7)
Settlement of convertible debt	(8.3)		(8.3)
Stock-based compensation	21.9		21.9
Tax benefit related to employees' and directors' stock plans	5.9		5.9
Purchases of company common stock (in shares)					9,600,000
Purchases of company common stock	(537.5)				(537.5)
Net income	252.2			252.2
Other comprehensive items	120.4					120.4
Balance at Apr. 02, 2011	15,254.7	403.4	10,085.4	5,638.6	(1,036.7)	164.0
Balance (in shares) at Apr. 02, 2011		403,400,000
Balance (in shares) at Apr. 02, 2011					20,200,000
Balance at Dec. 31, 2011	15,038.1	406.4	10,152.0	6,716.3	(1,837.1)	(399.5)
Balance (in shares) at Dec. 31, 2011	406,416,940	406,400,000
Balance (in shares) at Dec. 31, 2011	35,033,919				35,000,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employees' and directors' stock plans (in shares)		2,100,000			200,000
Issuance of shares under employees' and directors' stock plans	49.7	2.1	56.5		(8.9)
Stock-based compensation	17.3		17.3
Tax benefit related to employees' and directors' stock plans	6.0		6.0
Purchases of company common stock (in shares)					6,000,000
Purchases of company common stock	(300.0)				(300.0)
Dividend declared	(48.0)			(48.0)
Net income	277.3			277.3
Other comprehensive items	248.6					248.6
Balance at Mar. 31, 2012	$ 15,289.0	$ 408.5	$ 10,231.8	$ 6,945.6	$ (2,146.0)	$ (150.9)
Balance (in shares) at Mar. 31, 2012	408,489,577	408,500,000
Balance (in shares) at Mar. 31, 2012	41,186,226				41,200,000