Derivative Financial Instruments (Tables)

9 Months Ended

Oct. 31, 2014

Summary of Derivative Instruments [Abstract]

Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block]

The Company's derivative instruments, as well as its nonderivative debt instruments designated and qualifying as net investment hedges, were classified as follows in the Company's Condensed Consolidated Balance Sheets:

	October 31, 2014						January 31, 2014
(Amounts in millions)	Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments		Fair Value Instruments		Net Investment Instruments		Cash Flow Instruments
Derivative instruments
Prepaid expenses and other	$	—	$	—	$	—	$	5	$	—	$	—
Other assets and deferred charges	—		138		362		—		97		619
Derivative asset subtotals	$	—	$	138	$	362	$	5	$	97	$	619
Accrued liabilities	$	—	$	—	$	1	$	—	$	—	$	1
Deferred income taxes and other	—		—		147		—		—		1
Derivative liability subtotals	$	—	$	—	$	148	$	—	$	—	$	2
Nonderivative hedging instruments
Long-term debt due within one year	$	—	$	824	$	—	$	—	$	973	$	—
Long-term debt	—		4,092		—		—		5,095		—
Nonderivative hedge liability subtotals	$	—	$	4,916	$	—	$	—	$	6,068	$	—