Acquisitions (Pro Forma Financial Information) (Details) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 27, 2019	Sep. 28, 2018	Sep. 27, 2019	Sep. 28, 2018
Business Combinations [Abstract]
Sales	$ 5,037.3	$ 4,873.4	$ 15,082.6	$ 14,685.8
Net earnings attributable to common stockholders	$ 648.4	$ 658.1	$ 1,681.2	$ 1,888.5
Diluted net earnings per share	$ 0.89	$ 0.93	$ 2.32	$ 2.66