Leases

On January 1, 2019, we adopted ASC 842 using the optional transition method provided by ASU 2018-11. Our operating leases primarily consist of real estate leases such as offices, warehouses, and research and development facilities. Our leases have remaining lease terms ranging from 1 year to 11 years, some of which include options to extend the leases for up to 5 years or to terminate the leases within 1 year. Our finance leases are immaterial.

Our total operating lease expenses for the three months ended March 31, 2019 and 2018 were $9 million and $7 million, respectively. The total amount of variable and short term lease payments incurred during the three months ended March 31, 2019 are immaterial.

Supplemental balance sheet and cash flow information related to operating leases is as follows:



	March 31, 2019
Operating lease right-of-use assets⁽¹⁾	$	118
Accrued liabilities	26
Operating lease liabilities	98
Total operating lease liabilities	$	124
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$	8
Weighted average remaining lease term, years	6
Weighted average discount rate	5		%
(1) Right-of use assets obtained in exchange for lease obligations during the first quarter of 2019 were immaterial.

Lease liability maturities:



	2019		2020		2021		2022		2023		Thereafter		Less Imputed Interest			Total
Operating leases	$	24	$	28	$	24	$	19	$	15	$	34	$	(20	)	$	124

As of March 31, 2019, we did not have material additional operating leases that have not yet commenced.