Earnings Per Share (Reconciliation Of The Numerators And The Denominators Of The Basic And Diluted Per Share) (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 29, 2019	Jun. 30, 2020	Jun. 29, 2019
Earnings Per Share [Abstract]
Income available to common shareholders, basic	$ 134,748	$ 126,969	$ 281,907	$ 293,188
Income available to common shareholders including assumed conversions, diluted	$ 134,748	$ 126,969	$ 281,907	$ 293,188
Basic weighted average shares outstanding	304,776	321,280	307,256	322,485
Stock options and non-vested shares, incremental shares	1,941	3,382	2,264	3,013
Diluted weighted average shares outstanding	306,717	324,662	309,520	325,498
Basic earnings per share	$ 0.44	$ 0.40	$ 0.92	$ 0.91
Diluted earnings per share	$ 0.44	$ 0.39	$ 0.91	$ 0.90