CONDENSED CONSOLIDATED STATEMENT OF CHANGES IN EQUITY - 9 months ended Sep. 30, 2015 - USD ($) shares in Millions, $ in Millions	Total	Additional Paid-in Capital	Retained earnings	Class A	Class B
Balance at Dec. 31, 2014	$ 4,348	$ 3,510	$ 836	$ 2	$ 0
Balance (in shares) at Dec. 31, 2014				245.0	0.8
Increase (Decrease) in Stockholders' Equity
Share-based compensation	14	14
Share-based compensation (in shares)				3.0	0.0
Net (loss) income	(17)		(17)
Balance at Sep. 30, 2015	$ 4,345	$ 3,524	$ 819	$ 2	$ 0
Balance (in shares) at Sep. 30, 2015				248.0	0.8