LEASES (Tables)

12 Months Ended

Dec. 31, 2017

Leases [Abstract]

Future Minimum Lease Obligations

The following table presents our future minimum lease obligations for which we are the primary obligor as of year-end 2017:

($ in millions)	Operating Leases		Capital Leases
2018	$	187	$	13
2019	187		14
2020	167		14
2021	143		13
2022	154		14
Thereafter	1,454		178
Total minimum lease payments where we are the primary obligor	$	2,292	$	246
Less: Amount representing interest			75
Present value of minimum lease payments			$	171

Composition of Rent Expense Associated with Operating Leases

The following table details the composition of rent expense for operating leases for the last three years:

($ in millions)	2017		2016		2015
Minimum rentals	$	194	$	150	$	138
Additional rentals	85		67		65
	$	279	$	217	$	203