XML 70 R49.htm IDEA: XBRL DOCUMENT v3.3.0.814
Fair Value Measurements (Carrying Value And Fair Value Of Long-Term Debt, Disclosure) (Detail) - USD ($)
$ in Millions
Oct. 31, 2015
Jan. 31, 2015
Nov. 01, 2014
Fair Value Measurements      
Carrying Value $ 5,762 $ 4,765 $ 4,972
Estimated Fair Value (a) [1] $ 6,322 $ 5,305 $ 5,476
[1] The estimated fair value of the Company’s publicly traded debt is based on reported transaction prices which are considered Level 2 inputs in accordance with ASC Topic 820, Fair Value Measurements and Disclosure. The estimates presented are not necessarily indicative of the amounts that the Company could realize in a current market exchange.