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Compensation Arrangements (Tables)

12 Months Ended

Dec. 31, 2012

Compensation [Abstract]

Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block]

The deferred compensation agreement values were estimated using the Monte Carlo valuation model with the following assumptions:

	December 31,
	2011				2010
Exercise price	$	19.50			$	19.50
Options outstanding (in millions)	2				2
Expected volatility	60		%		58		%
Expected dividend yield	—		%		—		%
Risk-free rate over the estimated expected life	0.17		%		0.59		%
Expected option life (in years)	1.5				2
Fair value of options (in millions)	$	8			$	7
Fair value of vested portion of options (in millions)	$	8			$	7

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- Definition

Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (f)(2)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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