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



	PPL				PPL Electric
	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Current Regulatory Assets:
Environmental cost recovery	$	6	$	24	$	—	$	—
Generation formula rate	13		7		—		—
Transmission service charge	10		10		10		10
Other	5		7		2		3
Total current regulatory assets (a)	$	34	$	48	$	12	$	13



	PPL				PPL Electric
	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Noncurrent Regulatory Assets:
Defined benefit plans	$	800	$	809	$	460	$	469
Taxes recoverable through future rates	331		326		331		326
Storm costs	79		93		23		30
Unamortized loss on debt	66		68		41		42
Interest rate swaps	148		141		—		—
Accumulated cost of removal of utility plant	139		137		139		137
AROs	187		143		—		—
Other	12		16		1		2
Total noncurrent regulatory assets	$	1,762	$	1,733	$	995	$	1,006



Current Regulatory Liabilities:
Generation supply charge	$	26	$	41	$	26	$	41
Demand side management	10		8		—		—
Gas supply clause	—		6		—		—
Universal service rider	6		5		6		5
Transmission formula rate	27		48		27		48
Fuel adjustment clause	10		14		—		—
Storm damage expense	14		16		14		16
Other	6		7		1		3
Total current regulatory liabilities	$	99	$	145	$	74	$	113

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	695	$	691	$	—	$	—
Coal contracts (b)	8		17		—		—
Power purchase agreement - OVEC (b)	79		83		—		—
Net deferred tax assets	24		23		—		—
Act 129 compliance rider	19		22		19		22
Defined benefit plans	27		24		—		—
Interest rate swaps	80		82		—		—
Other	3		3		—		—
Total noncurrent regulatory liabilities	$	935	$	945	$	19	$	22



	LKE				LG&E				KU
	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Current Regulatory Assets:
Environmental cost recovery	$	6	$	24	$	6	$	13	$	—	$	11
Generation formula rate	13		7		—		—		13		7
Other	3		4		2		3		1		1
Total current regulatory assets	$	22	$	35	$	8	$	16	$	14	$	19



	LKE				LG&E				KU
	June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015		June 30, 2016		December 31, 2015
Noncurrent Regulatory Assets:
Defined benefit plans	$	340	$	340	$	215	$	215	$	125	$	125
Storm costs	56		63		31		35		25		28
Unamortized loss on debt	25		26		16		17		9		9
Interest rate swaps	148		141		106		98		42		43
AROs	187		143		70		57		117		86
Plant retirement costs	5		6		—		—		5		6
Other	6		8		2		2		4		6
Total noncurrent regulatory assets	$	767	$	727	$	440	$	424	$	327	$	303



Current Regulatory Liabilities:
Demand side management	$	10	$	8	$	5	$	4	$	5	$	4
Gas supply clause	—		6		—		6		—		—
Fuel adjustment clause	10		14		2		2		8		12
Other	5		4		1		1		4		3
Total current regulatory liabilities	$	25	$	32	$	8	$	13	$	17	$	19

Noncurrent Regulatory Liabilities:
Accumulated cost of removal of utility plant	$	695	$	691	$	304	$	301	$	391	$	390
Coal contracts (b)	8		17		3		7		5		10
Power purchase agreement - OVEC (b)	79		83		54		57		25		26
Net deferred tax assets	24		23		23		23		1		—
Defined benefit plans	27		24		—		—		27		24
Interest rate swaps	80		82		40		41		40		41
Other	3		3		3		2		—		1
Total noncurrent regulatory liabilities	$	916	$	923	$	427	$	431	$	489	$	492


(a)	These amounts are included in "Other current assets" on the Balance Sheets.


(b)	These liabilities were recorded as offsets to certain intangible assets that were recorded at fair value upon the acquisition of LKE by PPL.