Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2012

Stockholders' Equity Note [Abstract]

Schedule of Treasury Stock

Treasury Stock

The Company’s Board of Directors authorized the repurchase of Common Stock as follows:

	Authorized Amount
	(In $ millions)
February 2008	400
October 2008	100
April 2011	129
October 2012	264
As of December 31, 2012	893

The authorization gives management discretion in determining the timing and conditions under which shares may be repurchased. The repurchase program does not have an expiration date.

The share repurchase activity pursuant to this authorization is as follows:

	Year Ended December 31,							Total From February 2008 Through
	2012			2011		2010		December 31, 2012
Shares repurchased	1,059,719		(1)	652,016		1,667,592		13,142,527
Average purchase price per share	$	42.44		$	46.99	$	28.77	$	38.14
Amount spent on repurchased shares (in millions)	$	45		$	31	$	48	$	501

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⁽¹⁾  Excludes 5,823 shares withheld from employee to cover statutory minimum withholding requirements for personal income taxes related to the vesting of restricted stock. Restricted stock is considered outstanding at the time of issuance and therefore, the shares withheld are treated as treasury shares.

Schedule of Components of Other Comprehensive Income (Loss), Net

Other Comprehensive Income (Loss), Net

	Year Ended December 31,
	2012						2011						2010
	Gross Amount		Income Tax (Provision) Benefit		Net Amount		Gross Amount		Income Tax (Provision) Benefit		Net Amount		Gross Amount	Income Tax (Provision) Benefit		Net Amount
	As Adjusted (Note 2)
	(In $ millions)
Unrealized gain (loss) on marketable securities	—		—		—		—		—		—		—	(1	)	(1	)
Foreign currency translation	13		(8	)	5		(29	)	2		(27	)	26	11		37
Unrealized gain (loss) on interest rate swaps	10		(3	)	7		37		(10	)	27		32	(15	)	17
Pension and postretirement benefits	(12	)	1		(11	)	(2	)	2		—		2	—		2
Total	11		(10	)	1		6		(6	)	—		60	(5	)	55

Schedule of Adjustments to Accumulated Other Comprehensive Income (Loss), Net

Adjustments to Accumulated other comprehensive income (loss), net, are as follows:

	Unrealized Gain (Loss) on Marketable Securities		Foreign Currency Translation		Unrealized Gain (Loss) on Interest Rate Swaps		Pension and Postretirement Benefits		Accumulated Other Comprehensive Income (Loss), Net
	As Adjusted (Note 2)
	(In $ millions)
As of December 31, 2009	—		(38	)	(101	)	(6	)	(145	)
Current period change	—		26		32		2		60
Income tax (provision) benefit	(1	)	11		(15	)	—		(5	)
As of December 31, 2010	(1	)	(1	)	(84	)	(4	)	(90	)
Current period change	—		(29	)	37		(2	)	6
Income tax (provision) benefit	—		2		(10	)	2		(6	)
As of December 31, 2011	(1	)	(28	)	(57	)	(4	)	(90	)
Current period change	—		13		10		(12	)	11
Income tax (provision) benefit	—		(8	)	(3	)	1		(10	)
As of December 31, 2012	(1	)	(23	)	(50	)	(15	)	(89	)