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, 2012	$ 7,662	$ 915	$ 2	$ 160	$ 6,585
Net income	1,331	0	0	0	1,331
Other comprehensive income (loss), net of tax	51	0	0	51	0
Dividends	(1,487)	0	0	0	(1,487)
Balance at Mar. 31, 2013	7,557	915	2	211	6,429
Net income	857	0	0	0	857
Other comprehensive income (loss), net of tax	(11)	0	0	(11)	0
Dividends	(665)	0	0	0	(665)
Balance at Mar. 31, 2014	7,738	915	2	200	6,621
Net income	1,197	0	0	0	1,197
Other comprehensive income (loss), net of tax	20	0	0	20	0
Dividends	(435)	0	0	0	(435)
Balance at Mar. 31, 2015	$ 8,520	$ 915	$ 2	$ 220	$ 7,383