Debt (Tables)

6 Months Ended

Jul. 31, 2020

Debt Disclosure [Abstract]

Schedule of Long-term Debt

The carrying values of the Company's borrowings were as follows (in millions):

Instrument	Date of issuance	Maturity date	Effective interest rate for the three months ended July 31, 2020	July 31, 2020		January 31, 2020
2023 Senior Notes	April 2018	April 2023	3.26%	$	995	$	995
2028 Senior Notes	April 2018	April 2028	3.70%	1,490		1,489
Loan assumed on 50 Fremont	February 2015	June 2023	3.75%	191		193
Total carrying value of debt				2,676		2,677
Less current portion of debt				(3)		(4)
Total noncurrent debt				$	2,673	$	2,673

Schedule of Maturities of Long-term Debt

The expected future principal payments for all borrowings as of July 31, 2020 is as follows (in millions):

Fiscal period:
Remaining six months of fiscal 2021	$	2
Fiscal 2022	4
Fiscal 2023	4
Fiscal 2024	1,182
Fiscal 2025	0
Thereafter	1,500
Total principal outstanding	$	2,692

Schedule of Interest Expense

The following table sets forth total interest expense recognized related to debt (in millions):

	Three Months Ended July 31,				Six Months Ended July 31,
	2020		2019		2020		2019
Contractual interest expense	$	24	$	28	$	48	$	56
Amortization of debt issuance costs	1		1		2		2
	$	25	$	29	$	50	$	58