EPS Calculation (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 27, 2015	Jun. 28, 2014	Jun. 27, 2015	Jun. 28, 2014
Earnings per Share
Net Income	$ 511.6	$ 278.5	$ 896.7	$ 821.6
Basic Weighted Average Shares	398.4	399.4	398.1	396.3
Effect of Equity Forward Arrangement	0.0	0.0	0.0	0.3
Effect of Stock Options and Restricted Units	3.1	3.7	3.4	4.1
Diluted Weighted Average Shares	401.5	403.1	401.5	400.7
Basic Earnings per Share:
Earnings Per Share, Basic (in dollars per share)	$ 1.28	$ 0.7	$ 2.25	$ 2.07
Diluted Earnings per Share:
Earnings Per Share, Diluted (in dollars per share)	$ 1.27	$ 0.69	$ 2.23	$ 2.05
Stock Options [Member]
Antidilutive Securities Excluded From Computation Of Earnings Per Share [Line Items]
Antidilutive Stock Options Excluded From Computation Of Earnings Per Share	3.6	2.5	3.8	2.4