Capital Stock and Earnings Per Share - Computation of Basic and Diluted Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 29, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jul. 01, 2018	Apr. 01, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Numerator:
Net income									$ 423,635	$ 531,451	$ 521,759
Denominator:
Basic weighted-average shares outstanding (in shares)									157,054	165,672	171,995
Effect of dilutive securities – employee stock compensation plan (in shares)									750	832	937
Diluted weighted-average shares outstanding (in shares)									157,804	166,504	172,932
Basic (in dollars per share)	$ 0.09	$ 0.55	$ 1.23	$ 0.80	$ 0	$ 0.69	$ 1.45	$ 1.04	$ 2.70	$ 3.21	$ 3.03
Diluted (in dollars per share)	$ 0.09	$ 0.55	$ 1.23	$ 0.80	$ 0	$ 0.68	$ 1.45	$ 1.03	$ 2.68	$ 3.19	$ 3.02