DEBT, CREDIT FACILITY, AND CAPITAL LEASE OBLIGATIONS (Tables)

9 Months Ended

Sep. 30, 2018

Debt Disclosure [Abstract]

Schedule of Unsecured Credit Agreement

TEP's unsecured credit agreement includes the following:

	Capacity		LOC Sub-Limit		Borrowed		Available		Weighted Average Interest Rate		Pricing (1)
($ in millions)	September 30, 2018
Credit Facility	$	250	$	50	$	15	$	235	3.24	%	LIBOR + 1.00% or ABR + 0.00%

⁽¹⁾  Interest rates and fees under the credit facility are based on a pricing grid tied to TEP's credit rating.

Schedule of Minimum Lease Payments Consist of the Fixed Capacity Charge and Purchase Option Price

TEP’s minimum lease payments consist of the fixed capacity charge and purchase option price. As of September 30, 2018, capital lease obligations related to the Tolling PPA mature on the following dates:

(in millions)	Capital Lease Obligations
2018	$	3
2019	176
2020	2
2021	—
2022	—
Total 2018-2022	181
Thereafter	—
Less: Imputed Interest	(17		)
Total	$	164