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, 2018	Sep. 28, 2018	Jun. 29, 2018	Mar. 30, 2018	Dec. 31, 2017	Sep. 29, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Numerator
Net earnings from continuing operations									$ 918.3	$ 884.3	$ 740.2
Mandatory convertible preferred stock cumulative dividends									(34.9)	0.0	0.0
Net earnings attributable to common stockholders from continuing operations									$ 883.4	$ 884.3	$ 740.2
Denominator
Weighted average common shares outstanding used in basic earnings per share (in shares)									345.5	347.5	345.7
Assumed exercise of dilutive options and vesting of dilutive Stock Awards (in shares)									5.2	5.1	1.6
Weighted average common shares outstanding used in diluted earnings per share (in shares)									350.7	352.6	347.3
Net earnings per share from continuing operations, Basic (in dollars per share)	$ 0.67	$ 0.56	$ 0.72	$ 0.61	$ 0.86	$ 0.65	$ 0.57	$ 0.46	$ 2.56	$ 2.54	$ 2.14
Net earnings per share from continuing operations, Diluted (in dollars per share)	$ 0.66	$ 0.55	$ 0.70	$ 0.61	$ 0.84	$ 0.64	$ 0.56	$ 0.47	$ 2.52	$ 2.51	$ 2.13