CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Mar. 31, 2022	Mar. 31, 2021	Mar. 31, 2022	Mar. 31, 2021
Net revenues	$ 7,189	$ 5,729	$ 14,248	$ 11,416
Operating Expenses
Personnel	1,226	1,114	2,351	2,095
Marketing	314	206	594	411
Network and processing	190	179	380	352
Professional fees	125	82	225	165
Depreciation and amortization	207	201	405	398
General and administrative	325	363	567	566
Litigation provision	0	3	148	4
Total operating expenses	2,387	2,148	4,670	3,991
Operating income	4,802	3,581	9,578	7,425
Non-operating Income (Expense)
Interest expense, net	(134)	(121)	(268)	(257)
Investment income and other	(126)	168	129	208
Total non-operating income (expense)	(260)	47	(139)	(49)
Income before income taxes	4,542	3,628	9,439	7,376
Income tax provision	895	602	1,833	1,224
Net income	$ 3,647	$ 3,026	$ 7,606	$ 6,152
Class A common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 1.70	$ 1.38	$ 3.54	$ 2.80
Basic Weighted-average Shares Outstanding (in shares)	1,654	1,695	1,662	1,695
Diluted Earnings Per Share (in dollars per share)	$ 1.70	$ 1.38	$ 3.54	$ 2.80
Diluted Weighted-average Shares Outstanding (in shares)	2,142	2,193	2,150	2,196
Class B common stock
Earnings Per Share
Basic Earnings Per Share (in dollars per share)	$ 2.76	$ 2.24	$ 5.74	$ 4.55
Basic Weighted-average Shares Outstanding (in shares)	245	245	245	245
Diluted Earnings Per Share (in dollars per share)	$ 2.75	$ 2.24	$ 5.73	$ 4.54
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)	$ 6.82	$ 5.52	$ 14.16	$ 11.22
Basic Weighted-average Shares Outstanding (in shares)	10	11	10	11
Diluted Earnings Per Share (in dollars per share)	$ 6.81	$ 5.52	$ 14.15	$ 11.20
Diluted Weighted-average Shares Outstanding (in shares)	10	11	10	11