CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Cash flows from operating activities:
Net income	$ 2,459	$ 2,057	$ 1,795
Adjustments:
Transaction and loan losses	1,380	1,274	1,011
Depreciation and amortization	912	776	805
Stock-based compensation	1,021	853	733
Deferred income taxes	(269)	(171)	(1,299)
Cost basis adjustments to loans and interest receivable held for sale	0	244	92
Unrealized (gains) losses on strategic investments	(207)	(86)	0
Other	(150)	(86)	(25)
Changes in assets and liabilities:
Accounts receivable	(120)	(59)	12
Changes in loans and interest receivable held for sale, net	4	1,407	(1,308)
Transaction loss allowance for cash losses, net	(1,079)	(1,046)	(817)
Funds receivable	(9)	(19)	0
Other current assets and non-current assets	(566)	(93)	(188)
Accounts payable	4	26	62
Funds payable and amounts due to customers	499	22	0
Income taxes payable	(40)	(44)	19
Other current liabilities and non-current liabilities	722	428	1,639
Net cash provided by operating activities	4,561	5,483	2,531
Cash flows from investing activities:
Purchases of property and equipment	(704)	(823)	(667)
Proceeds from sales of property and equipment	17	3	0
Changes in principal loans receivable, net	(1,631)	3,121	(920)
Purchases of investments	(27,881)	(22,381)	(19,418)
Maturities and sales of investments	24,878	21,898	18,448
Acquisitions, net of cash and restricted cash acquired	(70)	(2,124)	(323)
Funds receivable	(342)	1,146	(1,605)
Net cash (used in) provided by investing activities	(5,733)	840	(4,485)
Cash flows from financing activities:
Proceeds from issuance of common stock	138	144	144
Purchases of treasury stock	(1,411)	(3,520)	(1,006)
Tax withholdings related to net share settlements of restricted stock units and restricted stock awards	(504)	(419)	(166)
Borrowings under financing arrangements	5,471	2,075	1,800
Repayments under financing arrangements	(2,516)	(1,115)	(980)
Funds payable and amounts due to customers	2,510	1,573	4,292
Net cash provided by (used in) financing activities	3,688	(1,262)	4,084
Effect of exchange rate changes on cash, cash equivalents, and restricted cash	(6)	(113)	36
Net change in cash, cash equivalents, and restricted cash	2,510	4,948	2,166
Cash, cash equivalents, and restricted cash at beginning of period	13,233	8,285	6,119
Cash, cash equivalents, and restricted cash at end of period	15,743	13,233	8,285
Supplemental cash flow disclosures:
Cash paid for interest	78	69	6
Cash paid for income taxes, net	665	328	117
The below table reconciles cash, cash equivalents, and restricted cash as reported in the consolidated balance sheets to the total of the same amounts shown in the consolidated statements of cash flows:
Total cash, cash equivalents, and restricted cash shown in the consolidated statements of cash flows	$ 13,233	$ 13,233	$ 8,285