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

12 Months Ended

Jan. 31, 2018

Debt Instrument [Line Items]

Schedule of Line of Credit Facilities

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

	As of January 31,
	2018						2017
(Amounts in millions)	Available		Drawn		Undrawn		Available		Drawn		Undrawn
Five-year credit facility(1)	$	5,000	$	—	$	5,000	$	5,000	$	—	$	5,000
364-day revolving credit facility(1)	7,500		—		7,500		7,500		—		7,500
Total	$	12,500	$	—	$	12,500	$	12,500	$	—	$	12,500

(1) In May 2017, the Company renewed and extended its existing five-year credit facility and its existing 364-day revolving credit facility, both of which are used to support its commercial paper program.

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, 2018				January 31, 2017
(Amounts in millions)	Maturity Dates By Fiscal Year	Amount			Average Rate(1)	Amount			Average Rate(1)
Unsecured debt
Fixed	2019 - 2048	$	24,540		3.9%	$	30,500		4.7%
Variable	2019 - 2020	800			4.1%	500			5.5%
Total U.S. dollar denominated		25,340				31,000
Fixed	2023 - 2030	3,101			3.3%	2,674			3.3%
Variable		—				—
Total Euro denominated		3,101				2,674
Fixed	2031 - 2039	3,801			5.4%	4,370			5.3%
Variable		—				—
Total Sterling denominated		3,801				4,370
Fixed	2021 - 2028	1,655			0.4%	88			1.6%
Variable		—				—
Total Yen denominated		1,655				88
Total unsecured debt		33,897				38,132
Total other(2)		(114		)		139
Total debt		33,783				38,271
Less amounts due within one year		(3,738		)		(2,256		)
Long-term debt		$	30,045			$	36,015

(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) Includes deferred loan costs, discounts, fair value hedges, foreign-held debt and secured debt. At January 31, 2018 and 2017 the Company had secured debt in the amount of $10 million and $14 million, respectively, which was collateralized by property that had an aggregate carrying amount of approximately $101 million and $82 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
2019	$	3,733
2020	1,914
2021	3,336
2022	607
2023	2,934
Thereafter	21,259
Total	$	33,783

Schedule of Fiscal Year 2018 Debt Issuances

Information on significant long-term debt issued during fiscal 2018 is as follows:

(Amounts in millions)
Issue Date	Principal Amount	Maturity Date	Fixed vs. Floating	Interest Rate	Proceeds
July 18, 2017	70,000 JPY	July 15, 2022	Fixed	0.183%	$	619
July 18, 2017	40,000 JPY	July 18, 2024	Fixed	0.298%	354
July 18, 2017	60,000 JPY	July 16, 2027	Fixed	0.520%	530
October 20, 2017	300 USD	October 9, 2019	Floating	Floating	299
October 20, 2017	1,200 USD	October 9, 2019	Fixed	1.750%	1,198
October 20, 2017	1,250 USD	December 15, 2020	Fixed	1.900%	1,245
October 20, 2017	1,250 USD	December 15, 2022	Fixed	2.350%	1,245
October 20, 2017	1,000 USD	December 15, 2024	Fixed	2.650%	996
October 20, 2017	1,000 USD	December 15, 2047	Fixed	3.625%	990
Total					$	7,476

Schedule of Fiscal 2018 and 2017 Debt Maturities

The following table provides details of debt repayments during fiscal 2018:

(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment(1)
April 5, 2017	1,000 USD	Fixed	5.375%	$	1,000
April 21, 2017	500 USD	Fixed	1.000%	500
Total repayment of matured debt				1,500
December 15, 2018	1,000 USD	Fixed	1.950%	276
February 1, 2019	500 USD	Fixed	4.125%	136
July 8, 2020	1,500 USD	Fixed	3.625%	661
October 25, 2020	1,750 USD	Fixed	3.250%	553
April 15, 2021	1,000 USD	Fixed	4.250%	491
October 16, 2023	250 USD	Fixed	6.750%	98
April 5, 2027	750 USD	Fixed	5.875%	267
February 15, 2030	500 USD	Fixed	7.550%	412
September 4, 2035	2,500 USD	Fixed	5.250%	532
September 28, 2035	1,000 GBP	Fixed	5.250%	260
August 17, 2037	3,000 USD	Fixed	6.500%	1,700
April 15, 2038	2,000 USD	Fixed	6.200%	1,081
January 19, 2039	1,000 GBP	Fixed	4.875%	851
April 2, 2040	1,250 USD	Fixed	5.625%	499
July 9, 2040	750 USD	Fixed	4.875%	372
October 25, 2040	1,250 USD	Fixed	5.000%	731
April 15, 2041	2,000 USD	Fixed	5.625%	1,082
April 11, 2043	1,000 USD	Fixed	4.000%	291
October 2, 2043	750 USD	Fixed	4.750%	481
April 22, 2044	1,000 USD	Fixed	4.300%	498
Total repayment of extinguished debt				11,272
Total				$	12,772

(1) Represents portion of the principal amount repaid during fiscal 2018.

In connection with extinguishing debt, the Company paid premiums of approximately $3.1 billion during fiscal 2018, resulting in a loss on extinguishment of debt of approximately $3.1 billion.

During fiscal 2017, the following long-term debt matured and was repaid:

(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
April 11, 2016	1,000 USD	Fixed	0.600%	$	1,000
April 15, 2016	1,000 USD	Fixed	2.800%	1,000
				$	2,000