Note 11 - Debt (Details) (USD $)	12 Months Ended																														12 Months Ended								12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2012 Unsecured Debt [Member]	Dec. 31, 2011 Unsecured Debt [Member]	Jul. 31, 2012 Unsecured Debt [Member] Notes - July 2012 Issuance [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2015 - July [Member]	Jul. 31, 2012 Unsecured Debt [Member] Notes 2015 - July [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2017 - July [Member]	Jul. 31, 2012 Unsecured Debt [Member] Notes 2017 - July [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2022 - July [Member]	Jul. 31, 2012 Unsecured Debt [Member] Notes 2022 - July [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2042 - July [Member]	Jul. 31, 2012 Unsecured Debt [Member] Notes 2042 - July [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2013 [Member]	Dec. 31, 2011 Unsecured Debt [Member] Notes 2013 [Member]	Dec. 31, 2010 Unsecured Debt [Member] Notes 2013 [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2015 [Member]	Dec. 31, 2011 Unsecured Debt [Member] Notes 2015 [Member]	Dec. 31, 2010 Unsecured Debt [Member] Notes 2015 [Member]	Dec. 31, 2012 Unsecured Debt [Member] Notes 2020 [Member]	Dec. 31, 2011 Unsecured Debt [Member] Notes 2020 [Member]	Dec. 31, 2010 Unsecured Debt [Member] Notes 2020 [Member]	Dec. 31, 2012 Notes Payable, Other Payables [Member]	Dec. 31, 2011 Notes Payable, Other Payables [Member]	Dec. 31, 2012 Capital Lease Obligations [Member]	Dec. 31, 2011 Capital Lease Obligations [Member]	Dec. 31, 2012 Line of Credit [Member]	Dec. 31, 2012 Letter of Credit [Member]	Dec. 31, 2012 Swingline Loan [Member]	Dec. 31, 2012 Notes 2013 [Member]	Dec. 31, 2012 Commercial Paper [Member]	Dec. 31, 2011 Commercial Paper [Member]	Dec. 31, 2012 Line of Credit [Member]	Dec. 31, 2012 Notes Payable, Other Payables [Member]	Dec. 31, 2011 Notes Payable, Other Payables [Member]	Dec. 31, 2012 Capital Lease Obligations [Member]	Dec. 31, 2012 Fair Value, Inputs, Level 1 [Member] Fair Value, Measurements, Recurring [Member]	Dec. 31, 2012 GSI Commerce, Inc. [Member] Mortgages [Member]	Dec. 31, 2012 Interest Rate Type, Description, One [Member]	Dec. 31, 2012 Minimum [Member] Interest Rate Type, Description, One [Member]	Dec. 31, 2012 Minimum [Member] Interest Rate Type, Description, Two [Member]	Dec. 31, 2012 Maximum [Member] Interest Rate Type, Description, One [Member]	Dec. 31, 2012 Maximum [Member] Interest Rate Type, Description, Two [Member]
Debt Instrument [Line Items]
Coupon Rate						0.70%		1.35%		2.60%		4.00%			0.875%		1.625%	1.625%			3.25%									0.875%								6.30%
Effective Interest Rate						0.82%		1.456%		2.678%		4.114%				1.078%	1.805%		1.805%	3.389%		3.389%								1.078%
Long-term debt	$ 4,106,000,000	$ 1,525,000,000	$ 4,087,000,000	$ 1,495,000,000		$ 250,000,000		$ 999,000,000		$ 999,000,000		$ 742,000,000			$ 400,000,000		$ 599,000,000	$ 598,000,000		$ 498,000,000	$ 497,000,000		$ 13,000,000	$ 15,000,000	$ 6,000,000	$ 15,000,000
Short-term debt	413,000,000	565,000,000																								13,000,000				400,000,000		550,000,000		2,000,000	2,000,000	11,000,000
Total debt	4,519,000,000	2,090,000,000
Face amount of debt issued			1,500,000,000		3,000,000,000		250,000,000		1,000,000,000		1,000,000,000		750,000,000	400,000,000			600,000,000			500,000,000
Interest expense on borrowings incurred to finance receivables	64,000,000	32,000,000
Estimated fair value of notes included in long-term debt																																					4,600,000,000
Interest rate, minimum	3.00%
Interest rate, maximum	9.00%
Capital lease obligations	18,000,000
Imputed interest	(1,000,000)
Total present value of minimum lease payments	17,000,000
Debt instrument maturity date range, end (days)																															397 days
Commercial paper program amount																															2,000,000,000
Credit Agreement
Borrowings outstanding																											0
Letters of credit outstanding																											0
Maximum borrowing capacity on unsecured revolving credit facility																											3,000,000,000	300,000,000	100,000,000
Maximum allowable increase in borrowing capacity of revolving credit facility																											1,000,000,000
Description of variable rate basis																																							LIBOR
Basis spread on variable rate																																								0.625%	1.125%	1.125%	0.125%
Available borrowing capacity																																	2,000,000,000
Line of credit facility remaining borrowing capacity																																	1,000,000,000
Long-term Debt, Fiscal Year Maturity [Abstract]
2013	413,000,000
2014	19,000,000
2015	850,000,000
2016	0
2017	1,000,000,000
Thereafter	2,250,000,000
Long term debt	$ 4,532,000,000