CONSOLIDATED STATEMENTS OF CHANGES IN EQUITY - 9 months ended Jun. 30, 2015 - USD ($) shares in Millions, $ in Millions	Total		Additional Paid-in Capital	Accumulated Income	Accumulated Other Comprehensive Loss	Class A common stock Common Stock	Class B common stock Common Stock	Class C common stock Common Stock
Beginning Balance (in shares) at Sep. 30, 2014						1,978	245	22
Beginning Balance at Sep. 30, 2014	$ 27,413		$ 18,299	$ 9,131	$ (17)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income	4,816	[1]		4,816
Other comprehensive income, net of tax	13				13
Comprehensive income	4,829
Issuance of restricted stock awards (in shares)						2
Issuance of restricted stock awards	0
Conversion of class C common stock upon sale into public market (in shares)						12		(3)
Share-based compensation	139		139
Excess tax benefit for share-based compensation	78		78
Cash proceeds from issuance of common stock under equity plans (in shares)						2
Cash proceeds from issuance of common stock under employee equity plans	68		68
Restricted stock and performance-based shares settled in cash for taxes (in shares)						1
Restricted stock and performance-based shares settled in cash for taxes	(105)		(105)
Cash dividends declared and paid, at a quarterly amount of $0.12 per as-converted share (Note 9)	$ (885)			(885)
Repurchase of class A common stock (Note 9) (in shares)	(44)	[2]				(44)
Repurchase of class A common stock (Note 9)	$ (2,910)		(471)	(2,439)
Ending Balance (in shares) at Jun. 30, 2015						1,951	245	19
Ending Balance at Jun. 30, 2015	$ 28,627		$ 18,008	$ 10,623	$ (4)

[1] Net income is allocated based on proportional ownership on an as-converted basis. The weighted-average number of shares of as-converted class B common stock used in the income allocation was 405 million for the three and nine months ended June 30, 2015, and 413 million for the three and nine months ended June 30, 2014. The weighted-average number of shares of as-converted class C common stock used in the income allocation was 78 million and 82 million for the three and nine months ended June 30, 2015, respectively, and 103 million and 104 million for the three and nine months ended June 30, 2014, respectively.

[2] All shares repurchased in the open market have been retired and constitute authorized but unissued shares.