Investments (Tables)

3 Months Ended

Mar. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Available For Sale Debt Securities [Table Text Block]

Following is a summary of debt securities as of March 30, 2024 and December 30, 2023:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in millions)
March 30, 2024
Taxable bonds	$	12,093		14		584	11,523
Restricted investments	184			—		2	182
	$	12,277		14		586	11,705
December 30, 2023
Taxable bonds	$	11,467		23		574	10,916
Restricted investments	186			2		3	185
	$	11,653		25		577	11,101

Amortized Cost and Fair Value of Available For Sale Debt Securities by Expected Maturity [Table Text Block]

Following is a summary of the cost and fair value of debt securities by expected maturity as of March 30, 2024 and December 30, 2023:

	March 30, 2024				December 30, 2023
	Cost		Fair Value		Cost		Fair Value
	(Amounts are in millions)
Due in one year or less	$	2,341		2,322		1,906	1,899
Due after one year through five years	9,241			8,688		9,404	8,853
Due after five years through ten years	694			694		327	333
Due after ten years	1			1		16	16
	$	12,277		11,705		11,653	11,101

Available For Sale Debt Securities in an Unrealized Loss Position by Time Period Impaired [Table Text Block]

Following is a summary of debt securities with other unrealized losses by the time period impaired as of March 30, 2024 and December 30, 2023:

	Less Than 12 Months				12 Months or Longer			Total
	Fair Value		Unrealized Losses		Fair Value	Unrealized Losses		Fair Value	Unrealized Losses
	(Amounts are in millions)
March 30, 2024
Taxable bonds	$	1,635		7	7,876		577	9,511		584
Restricted investments	59			—	62		2	121		2
	$	1,694		7	7,938		579	9,632		586
December 30, 2023
Taxable bonds	$	1,276		2	7,845		572	9,121		574
Restricted investments	30			1	76		2	106		3
	$	1,306		3	7,921		574	9,227		577

Investment Income (Loss) [Table Text Block]

Following is a summary of investment income for the three months ended March 30, 2024 and April 1, 2023:

		Three Months Ended
	March 30, 2024			April 1, 2023
	(Amounts are in millions)
Interest and dividend income		$	108		82
Fair value adjustment, due to net unrealized gain, on equity securities held at end of period		387			246
		$	495		328