Consolidated Statements of Changes in Stockholders' Equity (USD $) In Millions, except Share data	Total USD ($)		Class B Common Stock	Common Stock	Additional Paid-in Capital USD ($)	Retained Earnings USD ($)	Accumulated Other Comprehensive Income (Loss) USD ($)	Treasury Stock USD ($)
Beginning balance at Dec. 31, 2014	$ 1,125				$ 673	$ 628	$ (31)	$ (145)
Beginning balance, shares at Dec. 31, 2014			12,799,999	132,315,465				(2,194,173)
Net income	63					63
Foreign currency translation adjustments	(28)	[1]					(28)
Issuance of common stock related to exercises of options and vesting of RSUs	8				8
Issuance of common stock related to exercise of options and vesting of RSUs, shares	585,000	[2]		582,900
Tax benefits on equity awards, net	6				6
Minimum withholding taxes on net share settlements of equity awards	(13)				(13)
Stock-based compensation	18				18
Ending balance at Mar. 31, 2015	$ 1,179				$ 692	$ 691	$ (59)	$ (145)
Ending balance, shares at Mar. 31, 2015			12,799,999	132,898,365				(2,194,173)

[1] Foreign currency translation adjustments exclude income taxes due to our practice and intention to indefinitely reinvest the earnings of our foreign subsidiaries in those operations.

[2] Inclusive of 203,689 options which were not converted into shares due to net share settlement in order to cover the aggregate exercise price and the minimum amount of required employee withholding taxes. Potential shares that had been convertible under stock options that were withheld under net share settlement remain in the authorized but unissued pool under the 2011 Incentive Plan and can be reissued by the Company. Total payments for the employees’ tax obligations to the taxing authorities due to net share settlements are reflected as a financing activity within the unaudited consolidated statements of cash flows.