Quarterly report pursuant to Section 13 or 15(d)

Consolidated Balance Sheets (parenthetical)

v3.3.0.814
Consolidated Balance Sheets (parenthetical) - USD ($)
$ in Millions
Oct. 31, 2015
Jan. 31, 2015
Nov. 01, 2014
Accumulated depreciation $ 6,086 $ 5,594 $ 6,633