Leases

We lease both real estate and equipment used in our operations. As of December 31, 2015, the remaining lives of our operating leases ranged from 1 to 82 years, with various automatic extensions totaling up to 78 years. For the years ended December 31, 2015, 2014, and 2013, rental expense for operating leases was $72 million, $137 million, and $131 million, respectively. In addition to minimum rental commitments, certain of our operating leases provide for contingent rentals based on a percentage of revenues in excess of specified amounts.

Future Minimum Rental Commitments

(In millions)	Capital Leases		Operating Leases
2016	$	6	$	38
2017	2		39
2018	—		40
2019	—		40
2020	—		40
2021 and thereafter	—		558
Total minimum rental commitments	8		$	755
Less amounts representing interest	—
Present value of net minimum lease payments	$	8