Long-term Debt (Tables)

3 Months Ended

Apr. 30, 2018

Long-term Debt, by Current and Noncurrent [Abstract]

Schedule of long-term debt instruments

The following table provides the changes in the Company's long-term debt for the three months endedApril 30, 2018:

(Amounts in millions)	Long-term debt due within one year			Long-term debt			Total
Balances as of February 1, 2018	$	3,738		$	30,045		$	33,783
Repayments of long-term debt	(2,521		)	—			(2,521		)
Reclassifications of long-term debt	364			(364		)	—
Other	(5		)	(204		)	(209		)
Balances as of April 30, 2018	$	1,576		$	29,477		$	31,053

Schedule of long-term debt repaid and matured

The following table provides details of debt repayments during the three months endedApril 30, 2018:

(Amounts in millions)
Maturity Date	Principal Amount	Fixed vs. Floating	Interest Rate	Repayment
February 15, 2018	500 USD	Fixed	5.800%	$	500
February 15, 2018	750 USD	Fixed	5.800%	750
April 11, 2018	1,250 USD	Fixed	1.125%	1,250
Various	21 USD	Various	Various	21
Total repayment of matured debt				$	2,521