Incentive Compensation Plans (Stock Options) (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 30, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Outstanding shares subject to option, at beginning of period	3,630,684
Outstanding weighted average exercise price per share, at beginning of period	$ 55.66
Outstanding shares subject to option, granted	0
Outstanding shares subject to option, expired/forfeited	(289,945)
Outstanding weighted average exercise price per share, expired/forfeited	$ 48.48
Outstanding shares subject to option, at end of period	3,340,739	3,630,684
Outstanding weighted average exercise price per share, at end of period	$ 56.28	$ 55.66
Exercisable shares subject to option exercisable at end of period, at end of period	2,913,631
Exercisable weighted average exercise price per share, at end of period	$ 57.81
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value	$ 0.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value	0.0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Total intrinsic value of options exercised	$ 0.0	$ 0.4	$ 6.2
Average remaining contractual life for outstanding options (in years)	4 years 9 months 18 days
Average remaining contractual life of exercisable options (in years)	4 years 4 months 24 days
Weighted average estimated grant date fair value		$ 6.01	$ 10.48
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Term awards become exercisable	3 years
Term options expire from grant date (in years)	10 years
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Dividend yield		5.70%	4.40%
Expected volatility		29.00%	29.00%
Risk-free interest rate		3.10%	2.20%
Expected life (in years)		7 years	7 years