Investments (Tables)

3 Months Ended

Apr. 01, 2023

Investments, Debt and Equity Securities [Abstract]

Available For Sale Debt Securities [Table Text Block]

Following is a summary of debt securities as of April 1, 2023 and December 31, 2022:

	Cost		Gross Unrealized Gains		Gross Unrealized Losses		Fair Value
	(Amounts are in millions)
April 1, 2023
Taxable bonds	$	9,931		10		703	9,238
Tax exempt bonds	30			—		—	30
Restricted investments	187			—		4	183
	$	10,148		10		707	9,451
December 31, 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 April 1, 2023 and December 31, 2022:

	April 1, 2023				December 31, 2022
	Cost		Fair Value		Cost		Fair Value
	(Amounts are in millions)
Due in one year or less	$	758		751		570	566
Due after one year through five years	8,681			8,064		8,355	7,661
Due after five years through ten years	707			634		985	855
Due after ten years	2			2		2	2
	$	10,148		9,451		9,912	9,084

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 April 1, 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)
April 1, 2023
Taxable bonds	$	1,303		15	7,223		688	8,526		703
Restricted investments	168			2	15		2	183		4
	$	1,471		17	7,238		690	8,709		707
December 31, 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 the three months ended April 1, 2023 and March 26, 2022:

		Three Months Ended
	April 1, 2023			March 26, 2022
	(Amounts are in millions)
Interest and dividend income		$	82		57
Net realized gain on investments		—			1
		82			58
Fair value adjustment, due to net unrealized gain (loss), on equity securities held at end of period		246			(581)
		$	328		(523)