INVESTMENTS OF INSURANCE SUBSIDIARIES

9 Months Ended

Sep. 30, 2012

INVESTMENTS OF INSURANCE SUBSIDIARIES

NOTE 4 — INVESTMENTS OF INSURANCE SUBSIDIARIES

A summary of our insurance subsidiaries’ investments at September 30, 2012 and December 31, 2011 follows (dollars in millions):

	September 30, 2012
	Amortized Cost		Unrealized Amounts					Fair Value
			Gains		Losses
Debt securities:
States and municipalities	$	349	$	24	$	—		$	373
Auction rate securities		76		—		(5	)		71
Asset-backed securities		15		—		—			15
Money market funds		67		—		—			67
		507		24		(5	)		526
Equity securities		7		1		—			8
	$	514	$	25	$	(5	)		534
Amounts classified as current assets									(61	)
Investment carrying value								$	473
	December 31, 2011
	Amortized Cost		Unrealized Amounts					Fair Value
			Gains		Losses
Debt securities:
States and municipalities	$	398	$	19	$	—		$	417
Auction rate securities		139		—		(8	)		131
Asset-backed securities		20		—		—			20
Money market funds		53		—		—			53
		610		19		(8	)		621
Equity securities		7		1		(1	)		7
	$	617	$	20	$	(9	)		628
Amounts classified as current assets									(80	)
Investment carrying value								$	548

At September 30, 2012 and December 31, 2011, the investments of our insurance subsidiaries were classified as “available-for-sale.” Changes in temporary unrealized gains and losses are recorded as adjustments to other comprehensive income. At both September 30, 2012 and December 31, 2011, $19 million of our investments were subject to restrictions included in insurance bond collateralization and assumed reinsurance contracts.

Scheduled maturities of investments in debt securities at September 30, 2012 were as follows (dollars in millions):

	Amortized Cost		Fair Value
Due in one year or less	$	72	$	72
Due after one year through five years		140		149
Due after five years through ten years		111		119
Due after ten years		93		100
		416		440
Auction rate securities		76		71
Asset-backed securities		15		15
	$	507	$	526

The average expected maturity of the investments in debt securities at September 30, 2012 was 4.6 years, compared to the average scheduled maturity of 8.9 years. Expected and scheduled maturities may differ because the issuers of certain securities have the right to call, prepay or otherwise redeem such obligations prior to the scheduled maturity date. The average expected maturities for our auction rate and asset-backed securities were derived from valuation models of expected cash flows and involved management’s judgment. At September 30, 2012, the average expected maturities for our auction rate and asset-backed securities were 5.2 years and 4.1 years, respectively, compared to average scheduled maturities of 24.4 years and 24.1 years, respectively.