Derivative Financial Instruments (Tables)

6 Months Ended

Jul. 31, 2011

Derivative Financial Instruments

Balance Sheet Classification Of Financial Instruments

	July 31, 2011						January 31, 2011
(Amounts in millions)	Fair  Value Instruments		Net  Investment Instruments		Cash  Flow Instruments		Fair  Value Instruments		Net  Investment Instruments		Cash  Flow Instruments
Balance Sheet Classification:
Other assets and deferred charges	$	239	$	210	$	236	$	267	$	233	$	238
Asset subtotals	$	239	$	210	$	236	$	267	$	233	$	238
Long-term debt	$	239	$	—	$	—	$	267	$	—	$	—
Deferred income taxes and other		—		—		20		—		—		18
Liability subtotals	$	239	$	—	$	20	$	267	$	—	$	18