Derivative Financial Instruments (Tables)

12 Months Ended

Jan. 31, 2014

Summary of Derivative Instruments [Abstract]

Schedule of Derivative Instruments

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 Consolidated Balance Sheets:

	January 31, 2014						January 31, 2013
(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	$	—	$	—	$	29	$	—	$	—
Other assets and deferred charges	—		97		619		31		223		327
Derivative asset subtotals	$	5	$	97	$	619	$	60	$	223	$	327
Accrued liabilities	$	—	$	—	$	1	$	—	$	—	$	4
Deferred income taxes and other	—		—		1		—		—		91
Derivative liability subtotals	$	—	$	—	$	2	$	—	$	—	$	95
Nonderivative hedging instruments
Long-term debt due within one year	$	—	$	973	$	—	$	—	$	818	$	—
Long-term debt	—		5,095		—		—		6,145		—
Nonderivative hedge liability subtotals	$	—	$	6,068	$	—	$	—	$	6,963	$	—