Investments of Insurance Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

A summary of our insurance subsidiaries’ investments at June 30, 2022 and December 31, 2021 follows (dollars in millions):

	June 30, 2022
			Unrealized Amounts
	Amortized Cost		Gains		Losses			Fair Value
Debt securities	$	413	$	—	$	(26	)	$	387
Money market funds and other		106		—		—			106
	$	519	$	—	$	(26	)		493
Amounts classified as current assets									(114	)
Investment carrying value								$	379

	December 31, 2021
			Unrealized Amounts
	Amortized Cost		Gains		Losses			Fair Value
Debt securities	$	400	$	18	$	(2	)	$	416
Money market funds and other		125		—		—			125
	$	525	$	18	$	(2	)		541
Amounts classified as current assets									(103	)
Investment carrying value								$	438

Schedule of Maturities of Investments

Scheduled maturities of investments in debt securities at June 30, 2022 were as follows (dollars in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	20	$	20
Due after one year through five years		133		131
Due after five years through ten years		171		155
Due after ten years		89		81
	$	413	$	387