Investments (Tables)

12 Months Ended

Dec. 30, 2023

Investments, Debt and Equity Securities [Abstract]

Available For Sale Debt Securities [Table Text Block]

Following is a summary of debt securities as of December 30, 2023 and December 31, 2022:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in millions)
2023
Taxable bonds	$	11,467		23		574	10,916
Restricted investments	186			2		3	185
	$	11,653		25		577	11,101
2022
Taxable bonds	$	9,705		6		830	8,881
Tax exempt bonds	37			—		—	37
Restricted investments	170			—		4	166
	$	9,912		6		834	9,084

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 December 30, 2023 and December 31, 2022:

	2023			2022
	Cost		Fair Value	Cost	Fair Value
			(Amounts are in millions)
Due in one year or less	$	1,906	1,899	570	566
Due after one year through five years	9,404		8,853	8,355	7,661
Due after five years through ten years	327		333	985	855
Due after ten years	16		16	2	2
	$	11,653	11,101	9,912	9,084

Temporarily Impaired Available for Sale Debt Securities by Time Period Impaired [Table Text Bock]

Following is a summary of debt securities with other unrealized losses by the time period impaired as of December 30, 2023 and December 31, 2022:

	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)
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
2022
Taxable bonds	$	3,705		199	4,627		631	8,332		830
Restricted investments	151			2	15		2	166		4
	$	3,856		201	4,642		633	8,498		834

Investment Income (Loss) [Table Text Block]

Following is a summary of investment income (loss) for 2023, 2022 and 2021:

	2023			2022		2021
	(Amounts are in millions)
Interest and dividend income		$	379		256		197
Net realized gain (loss) on investments		134			(2)		33
		513			254		230
Fair value adjustment, due to net unrealized gain (loss), on equity securities held at end of year		398			(1,516)		1,109
Net gain on sale of equity securities previously recognized through fair value adjustment		(48)			—		(9)
		$	863		(1,262)		1,330