STOCKHOLDERS' EQUITY STATEMENTS - USD ($) $ in Millions	Total	Common stock and paid-in capital	Retained earnings	Accumulated other comprehensive income
Balance, beginning of period at Jun. 30, 2014		$ 68,366	$ 17,710	$ 3,708
Common stock cash dividends	$ (2,547)
Balance, end of period at Sep. 30, 2014		68,362	18,051	3,757
Balance, beginning of period at Jun. 30, 2014		68,366	17,710	3,708
Common stock issued		337
Net income	10,403		10,403
Other comprehensive income (loss)	(325)			(325)
Common stock cash dividends			(5,093)
Common stock repurchased		(1,744)	(3,289)
Stock-based compensation expense		1,279
Stock-based compensation income tax benefits		525
Other, net		2
Balance, end of period at Dec. 31, 2014	91,879	68,765	19,731	3,383
Balance, beginning of period at Sep. 30, 2014		68,362	18,051	3,757
Common stock issued		121
Net income	5,863		5,863
Other comprehensive income (loss)	(374)			(374)
Common stock cash dividends	(2,532)		(2,534)
Common stock repurchased		(376)	(1,649)
Stock-based compensation expense		633
Stock-based compensation income tax benefits		23
Other, net		2
Balance, end of period at Dec. 31, 2014	91,879	68,765	19,731	3,383
Balance, beginning of period at Jun. 30, 2015	80,083	68,465	9,096	2,522
Common stock cash dividends	(2,868)
Balance, end of period at Sep. 30, 2015		68,093	7,614	1,738
Balance, beginning of period at Jun. 30, 2015	80,083	68,465	9,096	2,522
Common stock issued		336
Net income	9,618		9,618
Other comprehensive income (loss)	(749)			(749)
Common stock cash dividends			(5,708)
Common stock repurchased		(2,157)	(6,278)
Stock-based compensation expense		1,332
Stock-based compensation income tax benefits		302
Other, net		1
Balance, end of period at Dec. 31, 2015	76,780	68,279	6,728	1,773
Balance, beginning of period at Sep. 30, 2015		68,093	7,614	1,738
Common stock issued		117
Net income	4,998		4,998
Other comprehensive income (loss)	35			35
Common stock cash dividends	(2,853)		(2,846)
Common stock repurchased		(609)	(3,038)
Stock-based compensation expense		658
Stock-based compensation income tax benefits		20
Other, net		0
Balance, end of period at Dec. 31, 2015	$ 76,780	$ 68,279	$ 6,728	$ 1,773