On January 28, 2019, we adopted the new lease accounting standard using the optional transition method.

Our lease obligations primarily consist of operating leases for our headquarters complex, domestic and international office facilities, and data center space, with lease periods expiring between fiscal years 2022 and 2035.

Future minimum lease payments under our non-cancelable operating leases as of January 31, 2021, are as follows:


	Operating Lease Obligations
	(In millions)
Fiscal Year:
2022	$	152
2023	135
2024	115
2025	94
2026	86
2027 and thereafter	288
Total	870
Less imputed interest	115
Present value of net future minimum lease payments	755
Less short-term operating lease liabilities	121
Long-term operating lease liabilities	$	634

Operating lease expense for fiscal years 2021, 2020, and 2019 was $145 million, $114 million, $80 million, respectively. Short-term and variable lease expenses for fiscal years 2021 and 2020 were not significant.


	Year Ended
	January 31, 2021		January 26, 2020

	(In millions)
Supplemental cash flows information
Operating cash flows used for operating leases	$	141	$	103
Operating lease assets obtained in exchange for lease obligations (1)	$	200	$	238

(1) Fiscal year 2021 includes $80 million of operating lease assets addition due to a business combination.

As of January 31, 2021, our operating leases had a weighted average remaining lease term of 7.6 years and a weighted average discount rate of 2.87%. As of January 26, 2020, our operating leases had a weighted average remaining lease term of 8.3 years and a weighted average discount rate of 3.45%.