XML 50 R34.htm IDEA: XBRL DOCUMENT v3.4.0.3
Discontinued Operations Discontinued Operations (Details) - USD ($)
$ in Millions
3 Months Ended
Apr. 30, 2016
May. 02, 2015
Disposal Group, Including Discontinued Operation, Income Statement Disclosures [Abstract]    
Revenue $ 0 $ 212
Loss from discontinued operations before income tax benefit 0 (10)
Income tax benefit 3 3
Gain on sale of discontinued operations 0 99
Net gain from discontinued operations $ 3 $ 92