CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Net revenues	$ 4,837	$ 5,840	$ 16,745	$ 16,840
Operating Expenses
Personnel	941	872	2,863	2,573
Marketing	174	282	683	799
Network and processing	172	184	536	528
Professional fees	95	113	304	305
Depreciation and amortization	197	165	571	484
General and administrative	258	315	840	855
Litigation provision (Note 14)	1	1	9	30
Total operating expenses	1,838	1,932	5,806	5,574
Operating income	2,999	3,908	10,939	11,266
Non-operating Income (Expense)
Interest expense, net	(142)	(128)	(371)	(413)
Investment income and other	75	86	167	320
Total non-operating income (expense)	(67)	(42)	(204)	(93)
Income before income taxes	2,932	3,866	10,735	11,173
Income tax provision (Note 13)	559	765	2,006	2,118
Net income	$ 2,373	$ 3,101	$ 8,729	$ 9,055
Class A common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.07	$ 1.37	$ 3.92	$ 3.98
Basic Weighted-average Shares Outstanding (in shares)	1,690	1,735	1,702	1,748
Diluted Earnings Per Share (in dollars per share)	$ 1.07	$ 1.37	$ 3.92	$ 3.97
Diluted Weighted-average Shares Outstanding (in shares)	2,214	2,265	2,227	2,278
Class B common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.74	$ 2.23	$ 6.37	$ 6.49
Basic Weighted-average Shares Outstanding (in shares)	245	245	245	245
Diluted Earnings Per Share (in dollars per share)	$ 1.74	$ 2.23	$ 6.36	$ 6.48
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)	$ 4.29	$ 5.48	$ 15.70	$ 15.92
Basic Weighted-average Shares Outstanding (in shares)	11	12	11	12
Diluted Earnings Per Share (in dollars per share)	$ 4.29	$ 5.48	$ 15.68	$ 15.90
Diluted Weighted-average Shares Outstanding (in shares)	11	12	11	12