Stockholders' Equity Statements (USD $) In Millions	Total	Common stock and paid-in capital	Retained earnings (deficit)	Accumulated other comprehensive income
Balance, beginning of period at Jun. 30, 2011		$ 63,415	$ (8,195)	$ 1,863
Common stock issued		1,635
Net income	17,470		17,470
Other comprehensive income (loss)	(531)			(531)
Common stock cash dividends			(5,046)
Common stock repurchased		(1,426)	(2,175)
Stock-based compensation expense		1,724
Stock-based compensation income tax benefits (deficiencies)		(79)
Other, net		4
Balance, end of period at Mar. 31, 2012	68,659	65,273	2,054	1,332
Balance, beginning of period at Dec. 31, 2011		63,902	(607)	826
Common stock issued		1,091
Net income	5,108		5,108
Other comprehensive income (loss)	506			506
Common stock cash dividends	(1,678)		(1,686)
Common stock repurchased		(262)	(761)
Stock-based compensation expense		591
Stock-based compensation income tax benefits (deficiencies)		(50)
Other, net		1
Balance, end of period at Mar. 31, 2012	68,659	65,273	2,054	1,332
Balance, beginning of period at Jun. 30, 2012	66,363	65,797	(856)	1,422
Common stock issued		755
Net income	16,898		16,898
Other comprehensive income (loss)	783			783
Common stock cash dividends			(5,778)
Common stock repurchased		(1,711)	(2,607)
Stock-based compensation expense		1,805
Stock-based compensation income tax benefits (deficiencies)		174
Other, net		6
Balance, end of period at Mar. 31, 2013	76,688	66,826	7,657	2,205
Balance, beginning of period at Dec. 31, 2012		66,334	4,236	2,006
Common stock issued		203
Net income	6,055		6,055
Other comprehensive income (loss)	199			199
Common stock cash dividends	(1,920)		(1,919)
Common stock repurchased		(313)	(715)
Stock-based compensation expense		599
Stock-based compensation income tax benefits (deficiencies)		2
Other, net		1
Balance, end of period at Mar. 31, 2013	$ 76,688	$ 66,826	$ 7,657	$ 2,205