Investments of Insurance Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2024

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

A summary of our insurance subsidiaries’ investments at June 30, 2024 and December 31, 2023 follows (dollars in millions):

	June 30, 2024
			Unrealized Amounts
	Amortized Cost		Gains		Losses			Fair Value
Debt securities	$	397	$	—	$	(31	)	$	366
Money market funds and other		221		—		—			221
	$	618	$	—	$	(31	)		587
Amounts classified as current assets									(104	)
Investment carrying value								$	483

	December 31, 2023
			Unrealized Amounts
	Amortized Cost		Gains		Losses			Fair Value
Debt securities	$	404	$	1	$	(29	)	$	376
Money market funds and other		188		—		—			188
	$	592	$	1	$	(29	)		564
Amounts classified as current assets									(87	)
Investment carrying value								$	477

Schedule of Maturities of Investments

Scheduled maturities of investments in debt securities at June 30, 2024 were as follows (dollars in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	29	$	29
Due after one year through five years		136		129
Due after five years through ten years		160		142
Due after ten years		72		66
	$	397	$	366