Amortized Cost and Fair Value of Available for Sale Securities by Expected Maturity (Details) - USD ($) $ in Thousands	Mar. 26, 2022	Dec. 25, 2021
Amortized Cost [Abstract]
Due in one year or less	$ 902,854	$ 875,740
Due after one year through five years	6,986,259	6,353,221
Due after five years through ten years	2,656,820	2,852,531
Due after ten years	2,724	2,868
Total amortized cost	10,548,657	10,084,360
Fair Value [Abstract]
Due in one year or less	905,060	883,066
Due after one year through five years	6,707,998	6,403,573
Due after five years through ten years	2,438,840	2,804,131
Due after ten years	2,761	3,002
Total fair value	$ 10,054,659	$ 10,093,772