Segments (Operating Income by Reportable Segment and Reconciliation to Earnings Before Income Tax Expense) (Details) - USD ($) $ in Millions	3 Months Ended
May 04, 2019	May 05, 2018
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ 334	$ 265
Investment income and other	14	11
Interest expense	(18)	(19)
Earnings before income tax expense	330	257
Domestic Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	332	267
International Segment [Member]
Segment Reporting, Reconciling Item for Operating Profit (Loss) from Segment to Consolidated [Line Items]
Operating income	$ 2	$ (2)

Amount of income (loss) from continuing operations before deduction of income tax expense (benefit) and income (loss) attributable to noncontrolling interest, and addition of income (loss) from equity method investments.

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Amount of the cost of borrowed funds accounted for as interest expense.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

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The net result for the period of deducting operating expenses from operating revenues.

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