Condensed Consolidated Statement of Cash Flows (USD $) In Millions, unless otherwise specified	9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013
Cash flows from operating activities:
Net income (loss)	$ (977)	$ 2,006
Adjustments:
Provision for transaction and loan losses	685	553
Depreciation and amortization	1,120	1,033
Stock-based compensation	488	412
Gain on sale of equity investments	0	(75)
Deferred income taxes	2,996	258
Changes in assets and liabilities, net of acquisition effects	(276)	(905)
Net cash provided by operating activities	4,036	3,282
Cash flows from investing activities:
Purchases of property and equipment	(902)	(969)
Changes in principal loans receivable, net	(493)	(395)
Purchases of investments	(6,879)	(5,726)
Maturities and sales of investments	4,594	2,710
Acquisitions, net of cash acquired	(59)	(85)
Repayment of note receivable and sale of related equity investments	0	485
Other	(6)	(14)
Net cash used in investing activities	(3,745)	(3,994)
Cash flows from financing activities:
Proceeds from issuance of common stock	178	301
Repurchases of common stock	(3,476)	(1,088)
Excess tax benefits from stock-based compensation	90	180
Tax withholdings related to net share settlements of restricted stock awards and units	(224)	(247)
Proceeds from issuance of debt	3,482	0
Funds receivable and customer accounts	(702)	(979)
Funds payable and amounts due to customers	702	979
Other	(7)	0
Net cash provided by (used in) financing activities	43	(854)
Effect of exchange rate changes on cash and cash equivalents	(38)	29
Net increase (decrease) in cash and cash equivalents	296	(1,537)
Cash and cash equivalents at beginning of period	4,494	6,817
Cash and cash equivalents at end of period	4,790	5,280
Supplemental cash flow disclosures:
Cash paid for interest	84	85
Cash paid for income taxes	$ 229	$ 348