CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Net revenues	$ 5,840	$ 5,240	$ 16,840	$ 15,175
Operating Expenses
Personnel	872	852	2,573	2,355
Marketing	282	240	799	724
Network and processing	184	169	528	498
Professional fees	113	112	305	312
Depreciation and amortization	165	152	484	450
General and administrative	315	230	855	688
Litigation provision (Note 13)	1	600	30	600
Total operating expenses	1,932	2,355	5,574	5,627
Operating income	3,908	2,885	11,266	9,548
Non-operating Income (Expense)
Interest expense, net	(128)	(155)	(413)	(462)
Investment income and other	86	82	320	182
Total non-operating income (expense)	(42)	(73)	(93)	(280)
Income before income taxes	3,866	2,812	11,173	9,268
Income tax provision (Note 12)	765	483	2,118	1,812
Net income	$ 3,101	$ 2,329	$ 9,055	$ 7,456
Class A common stock
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 1.37	$ 1.00	$ 3.98	$ 3.20
Basic weighted-average shares outstanding (in shares)	1,735	1,784	1,748	1,798
Diluted earnings per share (in dollars per share)	$ 1.37	$ 1.00	$ 3.97	$ 3.19
Diluted weighted-average shares outstanding (in shares)	2,265	2,321	2,278	2,337
Class B common stock
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 2.23	$ 1.66	$ 6.49	$ 5.27
Basic weighted-average shares outstanding (in shares)	245	245	245	245
Diluted earnings per share (in dollars per share)	$ 2.23	$ 1.65	$ 6.48	$ 5.26
Diluted weighted-average shares outstanding (in shares)	245	245	245	245
Class C common stock
Earnings Per Share
Basic earnings per share (in dollars per share)	$ 5.48	$ 4.02	$ 15.92	$ 12.78
Basic weighted-average shares outstanding (in shares)	12	12	12	12
Diluted earnings per share (in dollars per share)	$ 5.48	$ 4.01	$ 15.90	$ 12.76
Diluted weighted-average shares outstanding (in shares)	12	12	12	12