Summary of Significant Accounting Policies (Details Textual 1) - USD ($) $ in Millions	Jan. 29, 2016	Jan. 30, 2015
New Accounting Pronouncement, Early Adoption [Line Items]
Noncurrent deferred tax assets	$ 241	$ 133
Other assets (noncurrent)	665	1,349
Long-term debt, excluding current maturities	$ 11,545	10,806	[1]
New Accounting Pronouncement, Early Adoption, Effect [Member] | Accounting Standards Update 2015-17 [Member] | Restatement Adjustment [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Current deferred tax assets		(230)
Noncurrent deferred tax liabilities		(97)
Noncurrent deferred tax assets		133
New Accounting Pronouncement, Early Adoption, Effect [Member] | Accounting Standards Update 2015-03 [Member] | Restatement Adjustment [Member]
New Accounting Pronouncement, Early Adoption [Line Items]
Other assets (noncurrent)		(9)
Long-term debt, excluding current maturities		$ 9

[1] In connection with the Company’s adoption of ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs, prior year debt balances have been retrospectively adjusted to include a direct deduction of unamortized debt issuance costs. Prior to the Company’s adoption of ASU 2015-03, these unamortized debt issuance costs were included in other assets on the Company’s consolidated balance sheets.