Income Taxes (Activity Related to its Unrecognized Tax Benefits) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Jan. 31, 2015	Feb. 01, 2014	Feb. 02, 2013
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]
Gross Unrecognized Tax Benefits, as of the Beginning of the Fiscal Year	$ 167us-gaap_UnrecognizedTaxBenefits	$ 185us-gaap_UnrecognizedTaxBenefits	$ 146us-gaap_UnrecognizedTaxBenefits
Increases in Tax Benefits for Prior Years	16	39	13
Decreases in Tax Benefits for Prior Years	(14)	(54)	(19)
Increases in Unrecognized Tax Benefits as a Result of Current Year Activity	36	37	52
Decreases to Unrecognized Tax Benefits Relating to Settlements with Taxing Authorities	(5)	(34)	(1)
Decreases to Unrecognized Tax Benefits as a Result of a Lapse of the Applicable Statute of Limitations	(7)	(6)	(6)
Gross Unrecognized Tax Benefits, as of the End of the Fiscal Year	$ 193us-gaap_UnrecognizedTaxBenefits	$ 167us-gaap_UnrecognizedTaxBenefits	$ 185us-gaap_UnrecognizedTaxBenefits

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Amount of unrecognized tax benefits pertaining to uncertain tax positions taken in tax returns.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Unrecognized Tax Benefit

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Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from settlements with taxing authorities.

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Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return.

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Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns.

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Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations.

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