Note 3 - Business Combinations (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	1 Months Ended	6 Months Ended	12 Months Ended			1 Months Ended	12 Months Ended			0 Months Ended	12 Months Ended				0 Months Ended		12 Months Ended			3 Months Ended		12 Months Ended					1 Months Ended		3 Months Ended
	Jun. 17, 2011	Jun. 30, 2011	Dec. 31, 2012 acquisitions	Dec. 31, 2011	Dec. 31, 2010 acquisitions	Jun. 17, 2011 GSI Commerce, Inc. [Member]	Dec. 31, 2011 GSI Commerce, Inc. [Member]	Dec. 31, 2010 GSI Commerce, Inc. [Member]	Dec. 31, 2011 Gittigidiyor [Member]	Aug. 11, 2011 Zong [Member]	Dec. 31, 2011 Zong [Member]	Dec. 31, 2011 Brands4friends [Member]	Dec. 31, 2011 Series of Individually Immaterial Business Acquisitions [Member] acquisitions	Dec. 31, 2012 Rue La La and ShopRunner [Member]	Aug. 16, 2011 Magento [Member]	Aug. 15, 2011 Magento [Member]	Dec. 31, 2012 Marketplaces [Member] acquisitions	Dec. 31, 2011 Marketplaces [Member] acquisitions	Dec. 31, 2010 Marketplaces [Member]	Jun. 30, 2011 Marketplaces [Member] Gittigidiyor [Member]	Dec. 31, 2012 Marketplaces [Member] Gittigidiyor [Member]	Dec. 31, 2011 Marketplaces [Member] Series of Individually Immaterial Business Acquisitions [Member] acquisitions	Dec. 31, 2012 Payments [Member] acquisitions	Dec. 31, 2011 Payments [Member] Series of Individually Immaterial Business Acquisitions [Member] acquisitions	Jun. 17, 2011 GSI's Licensed Sports Merchandise Business [Member]	Jun. 17, 2011 Rue La La and ShopRunner [Member]	Jun. 17, 2011 Settlement of Litigation Related to Acquisition [Member] GSI Commerce, Inc. [Member]	May 31, 2012 Rent.com [Member]	Jun. 30, 2012 Rent.com [Member]
Business Acquisition [Line Items]
Number of businesses acquired			3		3								8				2	13				4	1	4
Purchase consideration			$ 149	$ 3,439			$ 2,377		$ 235		$ 232	$ 193	$ 402							$ 235
Net Tangible Assets Acquired/(Liabilities Assumed)				16.0			128.0		(9.0)		(36.0)	(33.0)	(34.0)						0.3
Purchased Intangible Assets			70	1,189			819		53		77	76	164						18
Goodwill			100	2,234			1,430		191		191	150	272						78
Consideration transferred, liabilities incurred			(21)
Proceeds from divestiture																												145
Effective date of acquisition						Jun. 17, 2011				Aug. 11, 2011					Aug. 16, 2011
Purchase consideration per share						$ 29.25
Fair value of assumed restricted stock based awards						25
Per share amount of costs paid in connection with settlement of litigation related to acquisition																											$ 0.33
Separately recognized transaction related to the settlement of litigation related to acquisition																											24
Percentage of business divested																									100.00%	70.00%
Note receivable	467
Description of variable rate basis as part of planned divestiture and related planned loan receivable	3-month LIBOR
Basis spread on variable rate	1.10%
Fair value of loan receivable	287
(Gain) loss on divestiture of business		(257)	118	(257)	0																								118
Carrying amount of equity method investment														75
Payments to acquire businesses										232									96	182
Step acquisition previously held equity interest in acquiree																49.90%				10.00%
Gain on acquisitions			0	79	0										56					17
Percentage of voting interests acquired															100.00%						93.00%
Business Acquisition, Pro Forma Information [Abstract]
Total revenues							12,038	10,024
Net income							$ 3,169	$ 1,682
Basic earnings per share							$ 2.45	$ 1.29
Diluted earnings per share							$ 2.41	$ 1.27