Short-term Borrowings and Long-term Debt (Tables)

12 Months Ended

Jan. 31, 2016

Debt Instrument [Line Items]

Schedule of Short-term Debt [Table Text Block]

The following table includes additional information related to the Company's short-term borrowings for fiscal 2016, 2015 and 2014:

	Fiscal Years Ended January 31,
(Amounts in millions)	2016			2015			2014
Maximum amount outstanding at any month-end	$	10,551		$	11,581		$	13,318
Average daily short-term borrowings	4,536			7,009			8,971
Weighted-average interest rate	1.5		%	0.5		%	0.1		%

Schedule of Line of Credit Facilities [Table Text Block]

The committed lines of credit are summarized in the following table:

	Fiscal Years Ended January 31,
	2016						2015
(Amounts in millions)	Available		Drawn		Undrawn		Available		Drawn		Undrawn
Five-year credit facility(1)	$	6,000	$	—	$	6,000	$	6,000	$	—	$	6,000
364-day revolving credit facility(1)	9,000		—		9,000		9,000		—		9,000
Total	$	15,000	$	—	$	15,000	$	15,000	$	—	$	15,000

Schedule of Long-term Debt Instruments

The Company's long-term debt, which includes the fair value instruments further discussed in Note 8, consists of the following:

		January 31, 2016				January 31, 2015
(Amounts in millions)	Maturity Dates By Fiscal Year	Amount			Average Rate(1)	Amount			Average Rate(1)
Unsecured debt
Fixed	2017 - 2045	$	32,500		4.5%	$	36,000		4.3%
Variable	2019	500			5.3%	500			5.4%
Total U.S. dollar denominated		33,000				36,500
Fixed	2023 - 2030	2,708			3.3%	2,821			3.3%
Variable		—				—
Total Euro denominated		2,708				2,821
Fixed	2031 - 2039	4,985			5.3%	5,271			5.3%
Variable		—				—
Total Sterling denominated		4,985				5,271
Fixed	2021	83			1.6%	596			1.0%
Variable		—				255			0.6%
Total Yen denominated		83				851
Total unsecured debt		40,776				45,443
Total other debt (in USD)(2)		183				237
Total debt		40,959				45,680
Less amounts due within one year		(2,745		)		(4,791		)
Long-term debt		$	38,214			$	40,889

(1) The average rate represents the weighted-average stated rate for each corresponding debt category, based on year-end balances and year-end interest rates. Interest costs are also impacted by certain derivative financial instruments described in Note 8.

(2) A portion of other debt at January 31, 2016 and 2015 includes secured debt in the amount of $131 million and $139 million, respectively, which was collateralized by property that had an aggregate carrying amount of approximately $13 million and $19 million, respectively.

Schedule of Maturities of Long-term Debt

Annual maturities of long-term debt during the next five years and thereafter are as follows:

(Amounts in millions)	Annual
Fiscal Year	Maturities
2017	$	2,745
2018	1,519
2019	3,497
2020	498
2021	3,352
Thereafter	29,348
Total	$	40,959

Schedule of Fiscal Year 2015 Debt Issuances [Table Text Block]

Information on significant long-term debt issued during fiscal 2015 is as follows:

(Amounts in millions)
Issue Date	Principal Amount	Maturity Date	Fixed vs. Floating	Interest Rate	Proceeds
April 8, 2014	850 Euro	April 8, 2022	Fixed	1.900%	$	1,161
April 8, 2014	650 Euro	April 8, 2026	Fixed	2.550%	885
April 22, 2014	500 USD	April 21, 2017	Fixed	1.000%	499
April 22, 2014	1,000 USD	April 22, 2024	Fixed	3.300%	992
April 22, 2014	1,000 USD	April 22, 2044	Fixed	4.300%	985
October 22, 2014	500 USD	April 22, 2024	Fixed	3.300%	508
Total					$	5,030

Schedule of Fiscal 2016 and 2015 Debt Maturities [Table Text Block]

During fiscal 2016, the following long-term debt matured and was repaid:

(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
April 1, 2015	750 USD	Fixed	2.875%	$	750
July 1, 2015	750 USD	Fixed	4.500%	750
July 8, 2015	750 USD	Fixed	2.250%	750
July 28, 2015	30,000 JPY	Floating	Floating	243
July 28, 2015	60,000 JPY	Fixed	0.940%	487
October 25, 2015	1,250 USD	Fixed	1.500%	1,250
				$	4,230

During fiscal 2015, the following long-term debt matured and was repaid:

(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
February 3, 2014	500 USD	Fixed	3.000%	$	500
April 15, 2014	1,000 USD	Fixed	1.625%	1,000
May 15, 2014	1,000 USD	Fixed	3.200%	1,000
August 6, 2014	83,100 JPY	Fixed	1.490%	810
August 6, 2014	16,900 JPY	Floating	Floating	165
				$	3,475