Leases (Notes)

12 Months Ended

Dec. 31, 2019

Leases

We have leases primarily for offices, production buildings and equipment. Our leases have remaining contractual lease terms of up to 20 years. Certain leases include options to extend the lease terms, and those extensions are for periods from 1 to 32 years depending on the particular lease. Some leases may also include options to terminate the leases. Certain leases include variable lease payments based on production, usage or independent factors such as changes in published producer price indices.

Lease costs are presented below:



	2019
Operating leases	$	67.7
Short-term leases	45.7
Variable lease costs	73.0
Total	$	186.4

Rental expense was $48.1 and $43.1 for 2018 and 2017.

Other information related to leases was as follows:



	2019
Cash paid for operating leases within cash flows from operating activities	$	74.4
Right-of-use assets obtained in exchange for operating lease liabilities	28.9
Weighted-average remaining lease term of operating leases (in years)	8.2
Weighted-average discount rate for operating leases	8.5		%

Future minimum lease payments under noncancelable operating leases as of December 31, 2019, were as follows:



Year ending December 31:
2020	$	67.8
2021	54.1
2022	43.8
2023	37.2
2024	29.8
Thereafter	144.5
Total future minimum operating lease payments	377.2
Less imputed interest	115.5
Total operating lease liabilities	261.7
Less current portion of operating lease liabilities (included in Accrued liabilities)	49.6
Long-term operating lease liabilities (included in Other non-current liabilities)	$	212.1