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



	PPL				PPL Electric
	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Current Regulatory Assets:
Environmental cost recovery	$	4	$	6	$	—	$	—
Generation formula rate	8		11		—		—
Transmission service charge	—		7		—		7
Gas supply clause	6		3		—		—
Smart meter rider	12		6		12		6
Storm costs	1		5		1		5
Other	3		1		1		1
Total current regulatory assets (a)	$	34	$	39	$	14	$	19

Noncurrent Regulatory Assets:
Defined benefit plans	$	908	$	947	$	530	$	549
Taxes recoverable through future rates	347		340		347		340
Storm costs	37		57		—		9
Unamortized loss on debt	55		61		30		36
Interest rate swaps	29		31		—		—
Terminated interest rate swaps	93		98		—		—
Accumulated cost of removal of utility plant	166		159		166		159
AROs	224		211		—		—
Other	10		14		—		1
Total noncurrent regulatory assets	$	1,869	$	1,918	$	1,073	$	1,094



	PPL				PPL Electric
	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Current Regulatory Liabilities:
Generation supply charge	$	29	$	23	$	29	$	23
Transmission service charge	6		—		6		—
Universal service rider	19		14		19		14
Transmission formula rate	4		15		4		15
Fuel adjustment clause	11		11		—		—
Act 129 compliance rider	7		17		7		17
Storm damage expense	7		13		7		13
Other	4		8		—		1
Total current regulatory liabilities	$	87	$	101	$	72	$	83

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	678	$	700	$	—	$	—
Power purchase agreement - OVEC (b)	69		75		—		—
Net deferred tax assets	21		23		—		—
Defined benefit plans	27		23		—		—
Terminated interest rate swaps	74		78		—		—
Other	4		—		—		—
Total noncurrent regulatory liabilities	$	873	$	899	$	—	$	—



	LKE				LG&E				KU
	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Current Regulatory Assets:
Environmental cost recovery	$	4	$	6	$	4	$	6	$	—	$	—
Generation formula rate	8		11		—		—		8		11
Gas supply clause	6		3		6		3		—		—
Other	2		—		1		—		1		—
Total current regulatory assets	$	20	$	20	$	11	$	9	$	9	$	11

Noncurrent Regulatory Assets:
Defined benefit plans	$	378	$	398	$	235	$	246	$	143	$	152
Storm costs	37		48		20		26		17		22
Unamortized loss on debt	25		25		16		16		9		9
Interest rate swaps	29		31		29		31		—		—
Terminated interest rate swaps	93		98		54		57		39		41
AROs	224		211		57		70		167		141
Plant retirement costs	2		4		—		—		2		4
Other	8		9		2		4		6		5
Total noncurrent regulatory assets	$	796	$	824	$	413	$	450	$	383	$	374



	LKE				LG&E				KU
	September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016		September 30, 2017		December 31, 2016
Current Regulatory Liabilities:
Demand side management	$	—	$	3	$	—	$	2	$	—	$	1
Fuel adjustment clause	11		11		3		2		8		9
Other	4		4		2		1		2		3
Total current regulatory liabilities	$	15	$	18	$	5	$	5	$	10	$	13

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	678	$	700	$	281	$	305	$	397	$	395
Power purchase agreement - OVEC (b)	69		75		48		52		21		23
Net deferred tax assets	21		23		21		23		—		—
Defined benefit plans	27		23		—		—		27		23
Terminated interest rate swaps	74		78		37		39		37		39
Other	4		—		1		—		3		—
Total noncurrent regulatory liabilities	$	873	$	899	$	388	$	419	$	485	$	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.