Stockholders' Equity

Common Stock

The Company's Board of Directors follows a policy of declaring, subject to legally available funds, a quarterly cash dividend on each share of the Company's Series A common stock, par value $0.0001 per share ("Common Stock"), unless the Company's Board of Directors, in its sole discretion, determines otherwise.

The Company's Board of Directors approved increases in the Company's Common Stock cash dividend rates as follows:



	Increase	Quarterly Common Stock Cash Dividend	Annual Common Stock Cash Dividend	Effective Date
	(In percentages)	(In $ per share)
April 2017	28	0.46	1.84	May 2017

Treasury Stock



	Three Months Ended March 31,				Total From February 2008 Through March 31, 2018
	2018		2017		Total From February 2008 Through March 31, 2018
Shares repurchased	—		1,461,966		39,779,019
Average purchase price per share	$	—	$	89.95	$	58.71
Shares repurchased (in $ millions)	$	—	$	131	$	2,335
Aggregate Board of Directors repurchase authorizations during the period (in $ millions)⁽¹⁾	$	—	$	—	$	3,866

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⁽¹⁾	These authorizations give management discretion in determining the timing and conditions under which shares may be repurchased. This repurchase program began in February 2008 and does not have an expiration date.

The purchase of treasury stock reduces the number of shares outstanding. The repurchased shares may be used by the Company for compensation programs utilizing the Company's stock and other corporate purposes. The Company accounts for treasury stock using the cost method and includes treasury stock as a component of stockholders' equity.

Other Comprehensive Income (Loss), Net



	Three Months Ended March 31,
	2018					2017
	Gross Amount		Income Tax (Provision) Benefit	Net Amount		Gross Amount		Income Tax (Provision) Benefit	Net Amount
	(In $ millions)
Foreign currency translation	45		4	49		28		—	28
Gain (loss) on cash flow hedges	(2	)	1	(1	)	(2	)	—	(2	)
Pension and postretirement benefits	1		—	1		5		—	5
Total	44		5	49		31		—	31

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



	Foreign Currency Translation		Gain (Loss) on Cash Flow Hedges (Note 16)		Pension and Postretirement Benefits (Note 11)		Accumulated Other Comprehensive Income (Loss), Net
	(In $ millions)
As of December 31, 2017	(176	)	2		(3	)	(177	)
Other comprehensive income (loss) before reclassifications	45		(2	)	1		44
Amounts reclassified from accumulated other comprehensive income (loss)	—		—		—		—
Income tax (provision) benefit	4		1		—		5
As of March 31, 2018	(127	)	1		(2	)	(128	)