Consolidated Condensed Statements of Earnings - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 26, 2020	Jun. 28, 2019	Jun. 26, 2020	Jun. 28, 2019
Sales	$ 1,571.2	$ 1,864.7	$ 3,284.7	$ 3,457.6
Cost of sales	(756.9)	(960.7)	(1,594.6)	(1,740.9)
Gross profit	814.3	904.0	1,690.1	1,716.7
Operating costs:
Selling, general and administrative expenses	(516.6)	(537.1)	(1,073.8)	(1,023.5)
Research and development expenses	(106.6)	(117.4)	(220.3)	(226.4)
Impairment of goodwill	0.0	0.0	(85.3)	0.0
Operating profit	191.1	249.5	310.7	466.8
Non-operating expenses, net:
Interest expense, net	(43.2)	(44.4)	(86.8)	(69.7)
Other non-operating income (expense), net	5.3	(0.8)	0.7	(0.4)
Earnings from continuing operations before income taxes	153.2	204.3	224.6	396.7
Income taxes	(22.9)	(29.0)	(52.0)	(57.4)
Net earnings from continuing operations	130.3	175.3	172.6	339.3
Loss from discontinued operations, net of income taxes	(0.3)	(0.7)	(0.7)	(0.3)
Net earnings	130.0	174.6	171.9	339.0
Mandatory convertible preferred dividends	(17.2)	(17.2)	(34.5)	(34.5)
Net earnings attributable to common stockholders	$ 112.8	$ 157.4	$ 137.4	$ 304.5
Net earnings per common share from continuing operations:
Net earnings per common share from continuing operations - basic (in dollars per share)	$ 0.34	$ 0.47	$ 0.41	$ 0.91
Net earnings per common share from continuing operations - diluted (in dollars per share)	0.33	0.47	0.41	0.90
Net earnings per share from discontinued operations:
Net earnings per share from discontinued operations - basic (in dollars per share)	0	0	0	0
Net earnings per share from discontinued operations - diluted (in dollars per share)	0	0	0	0
Earnings Per Share [Abstract]
Net earnings per share - Basic (in dollars per share)	0.33	0.47	0.41	0.91
Net earnings per share - Diluted (in dollars per share)	$ 0.33	$ 0.46	$ 0.40	$ 0.90
Average common stock and common equivalent shares outstanding:
Weighted average common shares outstanding used in basic earnings per share (in shares)	337.3	335.6	337.1	335.4
Weighted average common shares outstanding used in diluted earnings per share (in shares)	339.7	339.7	339.9	339.8
Products
Sales	$ 1,367.7	$ 1,623.0	$ 2,855.5	$ 3,028.1
Cost of sales	(634.9)	(808.0)	(1,327.4)	(1,455.9)
Services
Sales	203.5	241.7	429.2	429.5
Cost of sales	$ (122.0)	$ (152.7)	$ (267.2)	$ (285.0)