CONDENSED CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Sep. 26, 2020	Dec. 28, 2019
Statement of Financial Position [Abstract]
Preferred stock, shares authorized (in shares)	10,000,000	10,000,000
Preferred stock, shares issued (in shares)	1,500,000	1,500,000
Preferred stock, shares outstanding (in shares)	1,500,000	1,500,000
Common stock, par value (in dollars per share)	$ 2.50	$ 2.50
Common stock, shares authorized (in shares)	300,000,000	300,000,000
Common stock, shares issued (in shares)	176,902,738	176,902,738