Fair Value Measurements (Tables)

9 Months Ended

Oct. 31, 2015

Fair Value, Assets, Liabilities and Stockholders' Equity Measured on Recurring Basis [Abstract]

Fair Value of Assets Measured on a Recurring Basis

The following table shows the Company's financial assets that are required to be measured at fair value on a recurring basis, by level within the hierarchy as defined by applicable accounting standards:

	October 31, 2015								November 1, 2014
			Fair Value Measurements								Fair Value Measurements
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(millions)
Marketable equity and debt securities	$	98	$	—	$	98	$	—	$	94	$	—	$	94	$	—

Estimated Fair Values of Company's Long Term Debt

The following table shows the estimated fair value of the Company's long-term debt:

	October 31, 2015						November 1, 2014
	Notional Amount		Carrying Amount		Fair Value		Notional Amount		Carrying Amount		Fair Value
	(millions)
Long-term debt	$	6,933	$	7,078	$	7,268	$	6,947	$	7,114	$	7,747

Fair Value Measurements, Nonrecurring

The following table shows certain of the Company's non-financial assets that were measured at fair value on a nonrecurring basis during 2015:

	October 31, 2015
			Fair Value Measurements
	Total		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	(millions)
Long-lived assets held and used	$	39	$	—	$	—	$	39