expense consisted of the following:



Lease cost	Classification	Three Months Ended March 31, 2019
		(in millions)
Operating lease cost	Lease expense	$	12
Finance lease cost
Amortization of leased assets	Depreciation, amortization, and accretion	—
Interest on lease liabilities	Interest expense	—
Short term lease cost	Lease expense	1
Variable lease cost	Lease expense	1
Sublease income	Lease income	(10		)
Net lease cost		$	4



Lease Term and Discount Rate		March 31, 2019
Weighted-average remaining lease term (years)
Operating leases		25 years
Finance leases		10 years
Weighted-average discount rate (%)
Operating leases		6%
Finance leases		8%



Other information	Three Months Ended March 31, 2019
	(in millions)
(Gain) Loss on sale and leaseback transactions, net	$	—
Cash paid for amount included in the measurement of lease liabilities
Operating cash flows from operating leases	$	(12	)
Operating cash flows from finance leases	$	—
Financing cash flows from finance leases	$	—
Leased assets obtained in exchange for new finance lease liabilities	$	—
Leased assets obtained in exchange for new operating lease liabilities	$	8

Maturities of lease liabilities as of March 31, 2019 are as follows:



Maturity of lease liabilities	Operating leases		Finance leases		Total
	(in millions)
2019 (remainder)	$	41	$	1	$	42
2020	52		1		53
2021	46		1		47
2022	44		1		45
2023	43		1		44
Thereafter	834		6		840
Total lease payment	1,060		11		1,071
Less: interest	509		4		513
Present value of lease liabilities	$	551	$	7	$	558

Lessor Accounting

The Partnership leases or subleases a portion of its real estate portfolio to third party companies as a stable source of long-term revenue. Our lessor and sublease portfolio consists mainly of operating leases with convenience store operators. At this time, most lessor agreements contain 5-year terms with renewal options to extend and early termination options based on established terms specific to the individual agreement.



	Three Months Ended March 31, 2019
	(in millions)
Fuel Distribution & Marketing lease income	$	32
All Other lease income	3
Total lease income	$	35

Minimum future lease payments receivable are as follows:



	March 31, 2019
	(in millions)
2019 (remainder)	$	68
2020	72
2021	59
2022	53
2023	3
Thereafter	5
Total undiscounted cash flow	$	260