Capital Stock and Earnings Per Share Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jul. 01, 2016	Apr. 01, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Earnings Per Share [Abstract]
Basic EPS									$ 1,044.5	$ 872.3
Basic EPS (in shares)									347.5	345.7	345.2
Basic EPS (in dollars per share)	$ 0.97	$ 0.77	$ 0.69	$ 0.58	$ 0.65	$ 0.66	$ 0.69	$ 0.53	$ 3.01	$ 2.52	$ 2.50
Incremental shares from assumed exercise of dilutive options and vesting of dilutive Stock Awards									$ 0.0	$ 0.0
Incremental Common Shares Attributable to Dilutive Effect of Share-based Payment Arrangements									5.1	1.6
Diluted EPS									$ 1,044.5	$ 872.3
Diluted EPS (in shares)									352.6	347.3	345.2
Diluted EPS (in dollars per share)	$ 0.95	$ 0.76	$ 0.68	$ 0.57	$ 0.64	$ 0.65	$ 0.69	$ 0.53	$ 2.96	$ 2.51	$ 2.50
Basic and diluted EPS											$ 863.8
Basic and diluted EPS (in shares)											345.2
Basic and Diluted EPS (in dollars per share)											$ 2.50