Financial Services, Allowances for Losses (Details 1) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Aug. 02, 2013	Aug. 03, 2012	Aug. 02, 2013	Aug. 03, 2012
Financing Receivable, Allowance for Credit Losses
Balance at beginning of period	$ 179	$ 192	$ 192	$ 202
Recoveries	13	23	27	36
Provision charged to income statement	33	29	61	66
Balance at end of period	170	189	170	189
Principal
Financing Receivable, Allowance for Credit Losses
Charge-offs	(48)	(47)	(95)	(98)
Interest
Financing Receivable, Allowance for Credit Losses
Charge-offs	(7)	(8)	(15)	(17)
Revolving loans
Financing Receivable, Allowance for Credit Losses
Balance at beginning of period	157	169	169	179
Recoveries	12	22	25	34
Provision charged to income statement	22	27	49	63
Balance at end of period	148	168	148	168
Revolving loans | Principal
Financing Receivable, Allowance for Credit Losses
Charge-offs	(36)	(42)	(80)	(91)
Revolving loans | Interest
Financing Receivable, Allowance for Credit Losses
Charge-offs	(7)	(8)	(15)	(17)
Fixed-term loans
Financing Receivable, Allowance for Credit Losses
Balance at beginning of period	22	23	23	23
Recoveries	1	1	2	2
Provision charged to income statement	11	2	12	3
Balance at end of period	22	21	22	21
Fixed-term loans | Principal
Financing Receivable, Allowance for Credit Losses
Charge-offs	(12)	(5)	(15)	(7)
Fixed-term loans | Interest
Financing Receivable, Allowance for Credit Losses
Charge-offs	$ 0	$ 0	$ 0	$ 0