Equity Investments and Other (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
	Jul. 30, 2016	Jul. 29, 2017	Jul. 30, 2016	Jan. 28, 2017
Schedule of Equity Method Investments [Line Items]
Proceeds from Equity Method Investment, Distribution, Return of Capital		$ 27	$ 111
Gain (Loss) on Equity Method Investment Dividends Or Distributions		20	108
Easton Investment [Member]
Schedule of Equity Method Investments [Line Items]
Equity Method Investments	$ 80	75	$ 80	$ 79
Proceeds from Equity Method Investment, Distribution, Return of Capital		27
Gain (Loss) on Equity Method Investment Dividends Or Distributions		$ 20
Easton Town Center Investment [Member]
Schedule of Equity Method Investments [Line Items]
Gain (Loss) on Equity Method Investment Dividends Or Distributions	108
Gain (Loss) on Equity Method Investment Dividends or Distributions, Net of Tax	70
Proceeds from Equity Method Investments, Return of Capital and Other	$ 124