Consolidated Statement of Shareholders' Equity - USD ($) shares in Millions, $ in Millions	Total	Common Stock [Member]	Capital in Excess of Par Value [Member]	Retained Earnings [Member]	Treasury Stock [Member]	Accumulated Other Comprehensive Items [Member]
Balance (in shares) at Dec. 31, 2013		369.6			(7.6)
Balance at Dec. 31, 2013	$ 16,856.1	$ 369.6	$ 8,222.6	$ 8,753.3	$ (412.2)	$ (77.2)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employees' and directors' stock plans (in shares)		2.7			(0.3)
Issuance of shares under employees' and directors' stock plans	82.0	$ 2.7	110.2		$ (30.9)
Issuance of shares (in shares)		34.9
Issuance of shares	2,942.3	$ 34.9	2,907.4
Stock-based compensation	56.0		56.0
Tax benefit related to employees' and directors' stock plans	55.5		55.5
Dividends declared	(120.3)			(120.3)
Net income	821.6			821.6
Other comprehensive items	(34.5)					(34.5)
Other	(0.1)		(0.1)
Balance (in shares) at Jun. 28, 2014		407.2			(7.9)
Balance at Jun. 28, 2014	20,658.6	$ 407.2	11,351.6	9,454.6	$ (443.1)	(111.7)
Balance (in shares) at Dec. 31, 2014		408.5			(8.0)
Balance at Dec. 31, 2014	20,548.1	$ 408.5	11,473.6	10,406.9	$ (455.9)	(1,285.0)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Issuance of shares under employees' and directors' stock plans (in shares)		2.1			(0.3)
Issuance of shares under employees' and directors' stock plans	57.1	$ 2.1	87.8		$ (32.8)
Stock-based compensation	59.3		59.3
Tax benefit related to employees' and directors' stock plans	48.6		48.6
Purchases of company common stock (in shares)					(3.9)
Purchases of company common stock	(500.0)				$ (500.0)
Dividends declared	(119.9)			(119.9)
Net income	896.7			896.7
Other comprehensive items	(310.1)					(310.1)
Balance (in shares) at Jun. 27, 2015		410.6			(12.2)
Balance at Jun. 27, 2015	$ 20,679.8	$ 410.6	$ 11,669.3	$ 11,183.7	$ (988.7)	$ (1,595.1)