Consolidated Statement of Shareholder's Equity - USD ($) $ in Millions	Total	Capital stock	Additional paid-in capital	Accumulated other comprehensive income	Retained earnings
Balance at Mar. 31, 2015	$ 8,520	$ 915	$ 2	$ 220	$ 7,383
Net (loss) income	742				742
Other comprehensive loss, net of tax	(85)			(85)
Balance at Dec. 31, 2015	9,177	915	2	135	8,125
Balance at Mar. 31, 2016	9,397	915	2	165	8,315
Net (loss) income	358				358
Other comprehensive loss, net of tax	(162)			(162)
Balance at Dec. 31, 2016	$ 9,593	$ 915	$ 2	$ 3	$ 8,673