11. Leased Facilities
At December 31, 2013, the Corporation and its consolidated subsidiaries held noncancelable operating charters and leases covering drilling equipment, tankers, service stations and other properties with minimum undiscounted lease commitments totaling $7,438 million as indicated in the table. Estimated related rental income from noncancelable subleases is $95 million.
| Related | |||||||||
| Lease Payments | Sublease | ||||||||
| Under Minimum | Rental | ||||||||
| Commitments | Income | ||||||||
| (millions of dollars) | |||||||||
| 2014 | 2,391 | 33 | |||||||
| 2015 | 1,724 | 29 | |||||||
| 2016 | 1,036 | 7 | |||||||
| 2017 | 481 | 5 | |||||||
| 2018 | 289 | 2 | |||||||
| 2019 and beyond | 1,517 | 19 | |||||||
| Total | 7,438 | 95 | |||||||
Net rental cost under both cancelable and noncancelable operating leases incurred during 2013, 2012 and 2011 were as follows:
| 2013 | 2012 | 2011 | ||||
| (millions of dollars) | ||||||
| Rental cost | 3,841 | 3,851 | 4,061 | |||
| Less sublease rental income | 44 | 44 | 74 | |||
| Net rental cost | 3,797 | 3,807 | 3,987 | |||