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Earnings Per Share (Details) - $ / shares shares in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2021	Sep. 27, 2020	Oct. 03, 2021	Sep. 27, 2020
Reconciliation of basic net earnings per share to diluted net earnings per share
Basic net earnings per share	$ 1.39	$ 1.35	$ 6.13	$ 4.93
Average shares outstanding — basic	2,632.6	2,632.5	2,632.2	2,633.0
Potential shares exercisable under stock option plans	138.3	115.7	139.1	120.2
Less: shares which could be repurchased under treasury stock method	(96.0)	(78.9)	(96.7)	(82.4)
Average shares outstanding — diluted	2,674.9	2,669.3	2,674.6	2,670.8
Diluted net earnings per share	$ 1.37	$ 1.33	$ 6.04	$ 4.86
Antidilutive securities excluded from computation of earnings per share, amount		20.0		17.0

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