EARNINGS PER SHARE - Reconciliation of Net Earnings per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	3 Months Ended
	Apr. 01, 2023	Apr. 02, 2022
Numerator (in millions):
Net (Loss) Earnings from Continuing Operations Attributable to Common Shareowners	$ (187.8)	$ 155.5
Add: Contract adjustment payments accretion	0.0	0.3
Net (Loss) Earnings from Continuing Operations Attributable to Common Shareowners - Diluted	(187.8)	155.8
Net earnings from discontinued operations	0.0	19.8
Net (Loss) Earnings Attributable to Common Shareowners - Diluted	$ (187.8)	$ 175.6
Denominator (in thousands):
Basic weighted-average shares outstanding (in shares)	149,574	155,433
Dilutive effect of stock contracts and awards (in shares)	0	9,980
Diluted weighted-average shares outstanding (in shares)	149,574	165,413
Basic (loss) earnings per share of common stock:
Continuing operations (in dollars per share)	$ (1.26)	$ 1.00
Discontinued operations (in dollars per share)	0	0.13
Total basic earnings per share of common share (in dollars per share)	(1.26)	1.13
Diluted (loss) earnings per share of common stock:
Continuing operations (in dollars per share)	(1.26)	0.94
Discontinued operations (in dollars per share)	0	0.12
Total diluted earnings per share of common stock (in dollars per share)	$ (1.26)	$ 1.06
Number of stock options (in shares)	5,735	2,545