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Investments of Insurance Subsidiaries (Tables)

12 Months Ended

Dec. 31, 2022

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

A summary of the insurance subsidiaries’ investments at December 31 follows (dollars in millions):


		2022
						Unrealized Amounts
		Amortized Cost				Gains				Losses				Fair Value
Debt securities		$	415			$	—			$	(38	)		$	377
Money market funds and other			96				—				—				96
		$	511			$	—			$	(38	)			473
Amounts classified as current assets															(92	)
Investment carrying value														$	381


		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 December 31, 2022 were as follows (dollars in millions):


		Amortized Cost				Fair Value
Due in one year or less		$	31			$	31
Due after one year through five years			121				116
Due after five years through ten years			185				161
Due after ten years			78				69
		$	415			$	377