Consolidated Condensed Balance Sheets (Parenthetical) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
	Jun. 26, 2020	Dec. 31, 2019
Statement of Financial Position [Abstract]
Accumulated depreciation	$ 867.9	$ 838.7
Preferred stock, par value (in dollars per share)	$ 0.01	$ 0.01
Preferred stock, shares authorized (in shares)	15,000,000.0	15,000,000.0
Preferred stock, dividend rate	5.00%	5.00%
Preferred stock, shares issued (in shares)	1,400,000	1,400,000
Preferred stock, shares outstanding (in shares)	1,400,000	1,400,000
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	2,000,000,000.0	2,000,000,000.0
Common stock, shares issued (in shares)	337,900,000	336,900,000
Common stock, shares outstanding (in shares)	337,000,000.0	336,000,000.0