Net Earnings Per Share (Components of Basic and Diluted Earnings per Share) (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	3 Months Ended
	Mar. 29, 2019	Mar. 30, 2018
Numerator
Net earnings	$ 333.8	$ 566.6
Adjustment for interest on convertible debentures	0.5	0.6
MCPS dividends	(6.5)	0.0
Net earnings attributable to common stockholders after assumed conversions for diluted EPS	$ 327.8	$ 567.2
Denominator
Weighted average common shares outstanding used in basic EPS	707.6	698.6
Incremental common shares from assumed exercise of dilutive options and vesting of dilutive RSUs and PSUs	8.7	8.3
Incremental common shares from assumed conversion of the convertible debentures	2.2	2.6
Weighted average common shares outstanding used in diluted EPS	718.5	709.5
Basic EPS	$ 0.46	$ 0.81
Diluted EPS	$ 0.46	$ 0.80