Income Taxes

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Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Deferred Tax Liability, Provisional Income Tax Benefit

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- Definition

Tax Cuts and Jobs Act, Incomplete Accounting, Net Tax Expense

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Tax Cuts and Jobs Act, Incomplete Accounting, Provisional Income Tax Expense (Benefit)

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Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense

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- Definition

Percentage of domestic federal statutory tax rate applicable to pretax income (loss).

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Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
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The sum of the amounts of estimated penalties and interest recognized in the period arising from income tax examinations.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
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-Paragraph 15
-Subparagraph (c)
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Tax year being audited in the income tax examination, in CCYY format.

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- Definition

Expiration date of each operating loss carryforward included in operating loss carryforward, in CCYY-MM-DD format.

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The portion of the valuation allowance pertaining to the deferred tax asset representing potential future taxable deductions from net operating loss carryforwards for which it is more likely than not that a tax benefit will not be realized.

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The amount of the unrecognized tax benefit of a position taken for which it is reasonably possible that the total amount thereof will significantly increase or decrease within twelve months of the balance sheet date.

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The total amount of unrecognized tax benefits that, if recognized, would affect the effective tax rate.

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Income Taxes (Narrative) (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
Income Taxes (Narrative) (Details) - USD ($) $ in Millions	Jan. 28, 2018	Jan. 28, 2018	Jan. 29, 2017	Jan. 31, 2016
Income Taxes [Line Items]
Federal statutory rate		34.00%	35.00%	35.00%
Change in unrecognized tax benefit which is reasonably possible within twelve months of the balance sheet date	$ 187	$ 187
Unrecognized tax benefits that would impact effective tax rate	483	483	$ 382	$ 382
Net adjustments for interest expense and penalties		$ 24	20	$ 5
Adjustment for New Tax Act [Member]
Income Taxes [Line Items]
Tax Cuts and Jobs Act, Incomplete Accounting, Net Tax Expense (Benefit)	127
Tax Cuts and Jobs Act, Incomplete Accounting, Transition Tax for Accumulated Foreign Earnings, Provisional Income Tax Expense (Benefit)	400
Tax Cuts and Jobs Act, Incomplete Accounting, Provisional Income Tax Expense (Benefit)	(126)
Tax Cuts and Jobs Act, Incomplete Accounting, Change in Tax Rate, Deferred Tax Liability, Provisional Income Tax Expense (Benefit)	$ (147)
Federal statutory rate	21.00%
Internal Revenue Service (IRS) [Member] \| Earliest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2010
Internal Revenue Service (IRS) [Member] \| Latest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2012
Mexican Tax Authority [Member] \| Earliest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2005
Mexican Tax Authority [Member] \| Latest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2009
State Administration of Taxation, China [Member] \| Earliest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2010
State Administration of Taxation, China [Member] \| Latest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2012
State and Local Jurisdiction [Member] \| Earliest Tax Year [Member]
Income Taxes [Line Items]
Expiration date of operating loss carryforwards		Jan. 01, 2018
Tax year under examination		2005
State and Local Jurisdiction [Member] \| Latest Tax Year [Member]
Income Taxes [Line Items]
Expiration date of operating loss carryforwards		Dec. 31, 2037
Tax year under examination		2015
Foreign Tax Authority [Member]
Income Taxes [Line Items]
Valuation allowance of operating loss carryforwards	$ 0	$ 0	$ 3
Foreign Tax Authority [Member] \| Earliest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2005
Foreign Tax Authority [Member] \| Latest Tax Year [Member]
Income Taxes [Line Items]
Tax year under examination		2015