CONSOLIDATED STATEMENTS OF CASH FLOWS (USD $) In Millions	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
CASH AND CASH EQUIVALENTS, BEGINNING OF PERIOD	$ 2,641	$ 1,844	$ 3,777	$ 3,444	$ 1,629	$ 1,936
OPERATING ACTIVITIES:
Net income	191	207	391	505	1,038	1,088
Adjustments to reconcile net income to net cash from operating activities:
Depreciation of fixed assets, including internal-use software and website development, and other amortization	244	129	446	249	766	456
Stock-based compensation	144	111	254	196	481	386
Other operating expense (income), net	41	25	74	51	129	83
Losses (gains) on sales of marketable securities, net	1	0	3	0	2	(2)
Other expense (income), net	(39)	(22)	(2)	(27)	(53)	(31)
Deferred income taxes	20	(8)	35	(28)	67	49
Excess tax benefits from stock-based compensation	(15)	(75)	(61)	(161)	(159)	(196)
Changes in operating assets and liabilities:
Inventories	(274)	(141)	69	180	(1,130)	(435)
Accounts receivable, net and other	(73)	(42)	286	412	(304)	(252)
Accounts payable	114	(81)	(2,535)	(1,972)	1,835	959
Accrued expenses and other	63	200	(119)	(161)	663	265
Additions to unearned revenue	257	161	467	349	805	990
Amortization of previously unearned revenue	(251)	(214)	(471)	(441)	(935)	(799)
Net cash provided by (used in) operating activities	423	250	(1,163)	(848)	3,205	2,561
INVESTING ACTIVITIES:
Purchases of fixed assets, including internal-use software and website development	(433)	(196)	(731)	(336)	(1,374)	(575)
Acquisitions, net of cash acquired, and other	(469)	(21)	(608)	(40)	(921)	(45)
Sales and maturities of marketable securities and other investments	2,028	1,208	3,967	2,080	6,138	3,354
Purchases of marketable securities and other investments	(2,077)	(1,466)	(3,189)	(2,721)	(6,746)	(5,661)
Net cash provided by (used in) investing activities	(951)	(475)	(561)	(1,017)	(2,903)	(2,927)
FINANCING ACTIVITIES:
Excess tax benefits from stock-based compensation	15	75	61	161	159	196
Proceeds from long-term debt and other	34	5	123	67	197	133
Repayments of long-term debt, capital lease, and finance lease obligations	(140)	(37)	(251)	(98)	(398)	(186)
Net cash provided by (used in) financing activities	(91)	43	(67)	130	(42)	143
Foreign-currency effect on cash and cash equivalents	25	(33)	61	(80)	158	(84)
Net increase (decrease) in cash and cash equivalents	(594)	(215)	(1,730)	(1,815)	418	(307)
CASH AND CASH EQUIVALENTS, END OF PERIOD	2,047	1,629	2,047	1,629	2,047	1,629
SUPPLEMENTAL CASH FLOW INFORMATION:
Cash paid for interest on long term debt	3	3	6	5	12	9
Cash paid for income taxes (net of refunds)	(1)	43	6	46	35	60
Assets Held under Capital Leases
SUPPLEMENTAL CASH FLOW INFORMATION:
Fixed assets acquired	230	83	411	142	673	252
Assets Held under Build-To-Suit Leases
SUPPLEMENTAL CASH FLOW INFORMATION:
Fixed assets acquired	$ 97	$ 60	$ 166	$ 120	$ 219	$ 191