Annual report pursuant to Section 13 and 15(d)


12 Months Ended
Dec. 31, 2020
Leases [Abstract]  
Our leased assets consist primarily of tug vessels and land sites, all of which are classified as operating leases.

Our policy is to recognize leases on our balance sheet by recording a lease liability representing the obligation to make future lease payments and a right-of-use asset representing the right to use the underlying asset for the lease term. As our leases generally do not provide an implicit rate, in order to calculate the lease liability, we discounted our expected future lease payments using our relevant subsidiary’s incremental borrowing rate at the later of January 1, 2019 or the commencement date of the lease. The incremental borrowing rate is an estimate of the rate of interest that a given subsidiary would have to pay to borrow on a collateralized basis over a similar term to that of the lease term.

Many of our leases contain renewal options exercisable at our sole discretion. Options to renew a lease are included in the lease term and recognized as part of the right-of-use asset and lease liability only to the extent they are reasonably certain to be exercised, such as when necessary to satisfy obligations that existed at the execution of the lease or when the non-renewal would otherwise result in a significant economic penalty.

We have elected the practical expedient to omit leases with an initial term of 12 months or less (“short-term lease”) from recognition on the balance sheet. We recognize short-term lease payments on a straight-line basis over the lease term and variable payments under short-term leases in the period in which the obligation is incurred.

Certain of our leases contain non-lease components which are not separated from the lease components when calculating the right-of-use asset and lease liability per our use of the practical expedient to combine both components of an arrangement for all classes of leased assets.
Certain of our leases also contain variable payments, such as inflation, that are not included when calculating the right-of-use asset and lease liability unless the payments are in-substance fixed. We recognize lease expense for operating leases on a straight-line basis over the lease term.

The following table shows the classification and location of our right-of-use assets and lease liabilities on our Consolidated Balance Sheets (in millions):
December 31,
Consolidated Balance Sheets Location 2020 2019
Right-of-use assets—Operating Operating lease assets, net $ 99  $ 94 
Current operating lease liabilities Current operating lease liabilities
Non-current operating lease liabilities Non-current operating lease liabilities 90  87 

The following table shows the classification and location of our lease cost on our Consolidated Statements of Income (in millions):
Year Ended December 31,
Consolidated Statements of Income Location 2020 2019
Operating lease cost (1) Operating costs and expenses (2) $ 12  $ 11 
(1)    Includes $1 million and $1 million of variable lease costs paid to the lessor during the years ended December 31, 2020 and 2019, respectively.
(2)     Presented in cost of sales, operating and maintenance expense, general and administrative expense or general and administrative expense—affiliate consistent with the nature of the asset under lease.

During the year ended December 31, 2018, we recognized rental expense for all operating leases of $16 million.

Future annual minimum lease payments for operating leases as of December 31, 2020 are as follows (in millions): 
Years Ending December 31, Operating Leases
2021 $ 11 
2022 11 
2023 11 
2024 11 
2025 11 
Thereafter 116 
Total lease payments 171 
Less: Interest (74)
Present value of lease liabilities $ 97 

The following table shows the weighted-average remaining lease term and the weighted-average discount rate for our operating leases:
December 31,
2020 2019
Weighted-average remaining lease term (in years) 24.5 26.4
Weighted-average discount rate 4.1  % 4.8%

The following table includes other quantitative information for our operating leases (in millions):
Year Ended December 31,
2020 2019
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases $ 11  $ 10