The following table provides information about the regulatory assets and liabilities of cost-based rate-regulated utility operations.



	PPL				PPL Electric
	June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016
Current Regulatory Assets:
Environmental cost recovery	$	6	$	6	$	—	$	—
Generation formula rate	10		11		—		—
Transmission service charge	—		7		—		7
Gas supply clause	7		3		—		—
Smart meter rider	10		6		10		6
Storm costs	3		5		3		5
Other	1		1		1		1
Total current regulatory assets (a)	$	37	$	39	$	14	$	19

Noncurrent Regulatory Assets:
Defined benefit plans	$	920	$	947	$	537	$	549
Taxes recoverable through future rates	345		340		345		340
Storm costs	40		58		—		10
Unamortized loss on debt	57		61		32		36
Interest rate swaps	124		129		—		—
Accumulated cost of removal of utility plant	162		159		162		159
AROs	245		211		—		—
Other	13		13		—		—
Total noncurrent regulatory assets	$	1,906	$	1,918	$	1,076	$	1,094



	PPL				PPL Electric
	June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016
Current Regulatory Liabilities:
Generation supply charge	$	19	$	23	$	19	$	23
Transmission service charge	6		—		6		—
Universal service rider	14		14		14		14
Transmission formula rate	3		15		3		15
Fuel adjustment clause	13		11		—		—
Act 129 compliance rider	11		17		11		17
Storm damage expense	4		13		4		13
Other	1		8		—		1
Total current regulatory liabilities	$	71	$	101	$	57	$	83

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	703	$	700	$	—	$	—
Power purchase agreement - OVEC (b)	72		75		—		—
Net deferred tax assets	21		23		—		—
Defined benefit plans	27		23		—		—
Interest rate swaps	76		78		—		—
Other	3		—		—		—
Total noncurrent regulatory liabilities	$	902	$	899	$	—	$	—



	LKE				LG&E				KU
	June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016
Current Regulatory Assets:
Environmental cost recovery	$	6	$	6	$	4	$	6	$	2	$	—
Generation formula rate	10		11		—		—		10		11
Gas supply clause	7		3		7		3		—		—
Total current regulatory assets	$	23	$	20	$	11	$	9	$	12	$	11

Noncurrent Regulatory Assets:
Defined benefit plans	$	383	$	398	$	238	$	246	$	145	$	152
Storm costs	40		48		22		26		18		22
Unamortized loss on debt	25		25		16		16		9		9
Interest rate swaps	124		129		85		88		39		41
AROs	245		211		84		70		161		141
Plant retirement costs	3		4		—		—		3		4
Other	10		9		4		4		6		5
Total noncurrent regulatory assets	$	830	$	824	$	449	$	450	$	381	$	374



	LKE				LG&E				KU
	June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016		June 30, 2017		December 31, 2016
Current Regulatory Liabilities:
Demand side management	$	—	$	3	$	—	$	2	$	—	$	1
Fuel adjustment clause	13		11		4		2		9		9
Other	1		4		—		1		1		3
Total current regulatory liabilities	$	14	$	18	$	4	$	5	$	10	$	13

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	703	$	700	$	308	$	305	$	395	$	395
Power purchase agreement - OVEC (b)	72		75		50		52		22		23
Net deferred tax assets	21		23		21		23		—		—
Defined benefit plans	27		23		—		—		27		23
Interest rate swaps	76		78		38		39		38		39
Other	3		—		1		—		2		—
Total noncurrent regulatory liabilities	$	902	$	899	$	418	$	419	$	484	$	480


(a)	For PPL, these amounts are included in "Other current assets" on the Balance Sheets.


(b)	This liability was recorded as an offset to an intangible asset that was recorded at fair value upon the acquisition of LKE by PPL.