Investments of Insurance Subsidiaries (Tables)

6 Months Ended

Jun. 30, 2015

Investments, Debt and Equity Securities [Abstract]

Schedule of Investments

A summary of our insurance subsidiaries’ investments at June 30, 2015 and December 31, 2014 follows (dollars in millions):

	June 30, 2015
	Amortized Cost		Unrealized Amounts					Fair Value
			Gains		Losses
Debt securities:
States and municipalities	$	433	$	14	$	(1	)	$	446
Money market funds		32		—		—			32
		465		14		(1	)		478
Equity securities		1		2		—			3
	$	466	$	16	$	(1	)		481
Amounts classified as current assets									(77	)
Investment carrying value								$	404

	December 31, 2014
	Amortized Cost		Unrealized Amounts					Fair Value
			Gains		Losses
Debt securities:
States and municipalities	$	477	$	18	$	(1	)	$	494
Money market funds		61		—		—			61
		538		18		(1	)		555
Equity securities		1		2		—			3
	$	539	$	20	$	(1	)		558
Amounts classified as current assets									(64	)
Investment carrying value								$	494

Schedule of Maturities of Investments

Scheduled maturities of investments in debt securities at June 30, 2015 were as follows (dollars in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	79	$	80
Due after one year through five years		165		168
Due after five years through ten years		121		126
Due after ten years		100		104
	$	465	$	478