STOCKHOLDERS' EQUITY STATEMENTS - USD ($) $ in Millions	Total	Common stock and paid-in capital	Retained earnings	Accumulated other comprehensive income (loss)
Balance, beginning of period at Jun. 30, 2017		$ 69,315	$ 17,769	$ 627
Common stock issued		747
Net income	$ 7,698		7,698
Other comprehensive income (loss)	(1,780)			(1,780)
Common stock cash dividends	(9,696)		(9,696)
Common stock repurchased		(2,572)	(5,797)
Cumulative effect of accounting changes			0	0
Stock-based compensation expense		2,928
Other, net		0
Balance, end of period at Mar. 31, 2018	$ 79,239	70,418	9,974	(1,153)
Cash dividends declared per common share	$ 1.26
Balance, beginning of period at Dec. 31, 2017		70,192	8,567	(399)
Common stock issued		251
Net income	$ 7,424		7,424
Other comprehensive income (loss)	(754)			(754)
Common stock cash dividends	(3,226)		(3,225)
Common stock repurchased		(995)	(2,792)
Cumulative effect of accounting changes			0	0
Stock-based compensation expense		969
Other, net		1
Balance, end of period at Mar. 31, 2018	$ 79,239	70,418	9,974	(1,153)
Cash dividends declared per common share	$ 0.42
Balance, beginning of period at Jun. 30, 2018	$ 82,718	71,223	13,682	(2,187)
Common stock issued		6,521
Net income	26,053		26,053
Other comprehensive income (loss)	989			989
Common stock cash dividends	(10,596)		(10,592)
Common stock repurchased		(3,433)	(11,482)
Cumulative effect of accounting changes			677	(67)
Stock-based compensation expense		3,462
Other, net		18
Balance, end of period at Mar. 31, 2019	$ 94,864	77,791	18,338	(1,265)
Cash dividends declared per common share	$ 1.38
Balance, beginning of period at Dec. 31, 2018		77,556	16,585	(2,013)
Common stock issued		274
Net income	$ 8,809		8,809
Other comprehensive income (loss)	748			748
Common stock cash dividends	(3,526)		(3,518)
Common stock repurchased		(1,218)	(3,538)
Cumulative effect of accounting changes			0	0
Stock-based compensation expense		1,172
Other, net		7
Balance, end of period at Mar. 31, 2019	$ 94,864	$ 77,791	$ 18,338	$ (1,265)
Cash dividends declared per common share	$ 0.46