Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2012

The estimated fair values of our financial instruments as of June 30, 2012 and December 31, 2011 have been calculated based upon available market information or an appropriate valuation technique, and are presented below by level in the fair value hierarchy:



	June 30, 2012				December 31, 2011
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
Level 1:
Subordinated convertible debentures	$	55	$	55	$	55	$	49
Senior and senior subordinated notes	5,480		5,737		1,732		1,795
Level 2:
4 percent Convertible Senior Notes (1)	133		148		129		138
Level 3:
Capital leases (2)	132		117		39		33

___________________


(1)	The fair value of the 4 percent Convertible Senior Notes is based on the market value of comparable notes. Consistent with the carrying amount, the fair value excludes the equity component of the notes. To exclude the equity component and calculate the fair value, we used an effective interest rate of 8.0 percent.


(2)	The fair value of capital leases reflects the present value of the leases, which was determined using a 7.0 percent interest rate.

- Definition

Tabular disclosure of the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, assets, and liabilities. Such certain disclosures about the financial instruments, assets, and liabilities include: (1) the fair value of the required items together with their carrying amounts (as appropriate) and (2) the methodology and assumptions used in developing such estimates of fair value.

+ References

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Reference 4: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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+ Details