Leases

We lease most of our store premises and some of our corporate facilities and distribution centers. These operating leases expire at various dates through 2032. Most store leases have a five-year base period and include options that allow us to extend the lease term beyond the initial base period, subject to terms agreed upon at lease inception. Some leases also include early termination options, which can be exercised under specific conditions.

The aggregate minimum non-cancelable annual lease payments under leases in effect on January 28, 2017 are as follows:



($ in millions)
Fiscal Year
2017	$	1,128
2018	1,111
2019	980
2020	826
2021	623
Thereafter	1,874
Total minimum lease commitments	$	6,542

The total minimum lease commitment amount above does not include minimum sublease rent income of $20 million receivable in the future under non-cancelable sublease agreements.

Rent expense related to our store premises, corporate facilities, and distribution centers under operating leases is as follows:



	Fiscal Year
($ in millions)	2016			2015			2014
Minimum rent expense	$	1,208		$	1,211		$	1,209
Contingent rent expense	107			106			114
Less: Sublease income	(4		)	(4		)	(4		)
Total	$	1,311		$	1,313		$	1,319