Borrowings (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
May 03, 2013	Feb. 01, 2013
Debt Instrument
Long-term structured financing debt	$ 999	$ 872
Less: current portion of long-term debt	(2,272)	(1,618)
Total long-term debt	4,115	5,242
Commercial paper	405	1,807
Current portion of long-term debt	2,272	1,618
Other	2	2
Total short-term debt	3,133	3,843
Total debt	7,248	9,085
2013A Notes
Debt Instrument
Long-term debt	0	601
Notes Issued, Long-term debt	600
Stated interest rate for each instrument	4.70%
Debt Instrument, Issuance Date	Apr. 17, 2008
Debt Instrument, Maturity Date	Apr. 15, 2013
Debt Instrument, Frequency of Periodic Payment	semiannually
2013B Notes
Debt Instrument
Long-term debt	500	500
Notes Issued, Long-term debt	500
Stated interest rate for each instrument	1.40%
Debt Instrument, Issuance Date	Sep. 07, 2010
Debt Instrument, Maturity Date	Sep. 10, 2013
Debt Instrument, Frequency of Periodic Payment	semiannually
2014A Notes
Debt Instrument
Long-term debt	500	500
Notes Issued, Long-term debt	500
Stated interest rate for each instrument	5.625%
Debt Instrument, Issuance Date	Apr. 01, 2009
Debt Instrument, Maturity Date	Apr. 15, 2014
Debt Instrument, Frequency of Periodic Payment	semiannually
2014B Notes
Debt Instrument
Long-term debt	300	300
Notes Issued, Long-term debt	300
Debt Instrument, Issuance Date	Mar. 28, 2011
Debt Instrument, Maturity Date	Apr. 01, 2014
Debt Instrument, Frequency of Periodic Payment	quarterly
2014C Notes
Debt Instrument
Long-term debt	400	400
Notes Issued, Long-term debt	400
Stated interest rate for each instrument	2.10%
Debt Instrument, Issuance Date	Mar. 28, 2011
Debt Instrument, Maturity Date	Apr. 01, 2014
Debt Instrument, Frequency of Periodic Payment	semiannually
2015 Notes
Debt Instrument
Long-term debt	702	702
Notes Issued, Long-term debt	700
Stated interest rate for each instrument	2.30%
Debt Instrument, Issuance Date	Sep. 07, 2010
Debt Instrument, Maturity Date	Sep. 10, 2015
Debt Instrument, Frequency of Periodic Payment	semiannually
2016 Notes
Debt Instrument
Long-term debt	403	402
Notes Issued, Long-term debt	400
Stated interest rate for each instrument	3.10%
Debt Instrument, Issuance Date	Mar. 28, 2011
Debt Instrument, Maturity Date	Apr. 01, 2016
Debt Instrument, Frequency of Periodic Payment	semiannually
2018 Notes
Debt Instrument
Long-term debt	503	502
Notes Issued, Long-term debt	500
Stated interest rate for each instrument	5.65%
Debt Instrument, Issuance Date	Apr. 17, 2008
Debt Instrument, Maturity Date	Apr. 15, 2018
Debt Instrument, Frequency of Periodic Payment	semiannually
2019 Notes
Debt Instrument
Long-term debt	604	604
Notes Issued, Long-term debt	600
Stated interest rate for each instrument	5.875%
Debt Instrument, Issuance Date	Jun. 10, 2009
Debt Instrument, Maturity Date	Jun. 15, 2019
Debt Instrument, Frequency of Periodic Payment	semiannually
2021 Notes
Debt Instrument
Long-term debt	398	398
Notes Issued, Long-term debt	400
Stated interest rate for each instrument	4.625%
Debt Instrument, Issuance Date	Mar. 28, 2011
Debt Instrument, Maturity Date	Apr. 01, 2021
Debt Instrument, Frequency of Periodic Payment	semiannually
2038 Notes
Debt Instrument
Long-term debt	400	400
Notes Issued, Long-term debt	400
Stated interest rate for each instrument	6.50%
Debt Instrument, Issuance Date	Apr. 17, 2008
Debt Instrument, Maturity Date	Apr. 15, 2038
Debt Instrument, Frequency of Periodic Payment	semiannually
2040 Notes
Debt Instrument
Long-term debt	300	300
Notes Issued, Long-term debt	300
Stated interest rate for each instrument	5.40%
Debt Instrument, Issuance Date	Sep. 07, 2010
Debt Instrument, Maturity Date	Sep. 10, 2040
Debt Instrument, Frequency of Periodic Payment	semiannually
2028 Notes
Debt Instrument
Long-term debt	378	379
Notes Issued, Long-term debt	300
Stated interest rate for each instrument	7.10%
Debt Instrument, Issuance Date	Apr. 03, 1998
Debt Instrument, Maturity Date	Apr. 15, 2028
Debt Instrument, Frequency of Periodic Payment	semiannually
Secured Debt
Debt Instrument
Other	$ 454	$ 416

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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