CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Cash flows from operating activities:
Net income	$ 917	$ 709
Loss from discontinued operations, net of income taxes	2	170
Adjustments:
Provision for transaction losses	116	134
Depreciation and amortization	334	334
Stock-based compensation	201	208
Gain on sale of investments	(6)	(102)
Changes in assets and liabilities, and other, net of acquisition effects	(159)	(406)
Net cash provided by continuing operating activities	1,405	1,047
Net cash provided by (used in) discontinued operating activities	(1)	1,260
Net cash provided by operating activities	1,404	2,307
Cash flows from investing activities:
Purchases of property and equipment	(305)	(297)
Purchases of investments	(5,128)	(3,350)
Maturities and sales of investments	3,519	3,952
Other	(59)	(3)
Net cash provided by (used in) continuing investing activities	(1,973)	302
Net cash used in discontinued investing activities	0	(2,723)
Net cash used in investing activities	(1,973)	(2,421)
Cash flows from financing activities:
Proceeds from issuance of common stock	52	146
Repurchases of common stock	(1,501)	(1,000)
Excess tax benefits from stock-based compensation	4	40
Tax withholdings related to net share settlements of restricted stock units and awards	(77)	(180)
Proceeds from issuance of long-term debt, net	2,216	0
Repayment of debt	(6)	0
Other	(3)	0
Net cash provided by (used in) continuing financing activities	685	(994)
Net cash provided by discontinued financing activities	0	16
Net cash provided by (used) in financing activities	685	(978)
Effect of exchange rate changes on cash and cash equivalents	53	(249)
Net increase (decrease) in cash and cash equivalents	169	(1,341)
Cash and cash equivalents at beginning of period	1,832	6,328
Cash and cash equivalents at end of period	2,001	4,987
Less: Cash and cash equivalents of discontinued operations	0	2,578
Cash and cash equivalents of continuing operations at end of period	2,001	2,409
Supplemental cash flow disclosures:
Cash paid for interest	91	88
Cash paid for income taxes	$ 84	$ 199