CONDENSED CONSOLIDATED BALANCE SHEETS (Unaudited) - USD ($) $ in Millions		Jun. 30, 2016	Dec. 31, 2015
Current Assets
Cash and cash equivalents		$ 1,091	$ 141
Restricted cash and cash equivalents		53	106
Accounts receivable (less reserve:)
Customer		220	205
Other		53	62
Unbilled revenues		136	160
Fuel, materials and supplies		482	508
Prepayments		57	52
Price risk management assets		429	562
Assets held for sale		0	954
Other current assets		14	12
Total Current Assets		2,535	2,762
Investments
Nuclear plant decommissioning trust funds		984	951
Other investments		18	25
Total Investments		1,002	976
Property, Plant and Equipment
Generation		13,607	13,468
Nuclear fuel		650	652
Other		348	342
Less: accumulated depreciation		6,533	6,411
Property, plant and equipment, net		8,072	8,051
Construction work in progress		492	536
Total Property, Plant and Equipment, net		8,564	8,587
Other Noncurrent Assets
Other intangibles		105	310
Price risk management assets		153	131
Other noncurrent assets		44	43
Total Other Noncurrent Assets		302	484
Total Assets		12,403	12,809
Current Liabilities
Short-term debt		350	608
Long-term debt due within one year		5	399
Accounts payable		262	291
Taxes		228	16
Interest		40	43
Price risk management liabilities		393	431
Liabilities held for sale		0	33
Counterparty collateral		22	79
Other current liabilities		182	188
Total Current Liabilities		1,482	2,088
Long-term Debt		3,896	3,787
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,461	1,587
Investment tax credits		9	15
Price risk management liabilities		127	108
Accrued pension obligations		352	340
Asset retirement obligations		501	490
Other deferred credits and noncurrent liabilities		110	91
Total Deferred Credits and Other Noncurrent Liabilities		2,560	2,631
Commitments and Contingent Liabilities
Equity
Common Stock - $0.001 par value	[1]	0	0
Additional paid-in capital		4,707	4,702
Accumulated deficit		(225)	(373)
Accumulated other comprehensive income (loss)		(17)	(26)
Total Equity		4,465	4,303
Total Liabilities and Equity		12,403	12,809
Talen Energy Supply
Current Assets
Cash and cash equivalents		1,091	141
Restricted cash and cash equivalents		53	106
Accounts receivable (less reserve:)
Customer		220	205
Other		53	62
Accounts receivable from affiliates		9	0
Unbilled revenues		136	160
Fuel, materials and supplies		482	508
Prepayments		57	52
Price risk management assets		429	562
Assets held for sale		0	954
Other current assets		14	12
Total Current Assets		2,544	2,762
Investments
Nuclear plant decommissioning trust funds		984	951
Other investments		18	25
Total Investments		1,002	976
Property, Plant and Equipment
Generation		13,607	13,468
Nuclear fuel		650	652
Other		348	342
Less: accumulated depreciation		6,533	6,411
Property, plant and equipment, net		8,072	8,051
Construction work in progress		492	536
Total Property, Plant and Equipment, net		8,564	8,587
Other Noncurrent Assets
Other intangibles		105	310
Price risk management assets		153	131
Other noncurrent assets		44	43
Total Other Noncurrent Assets		302	484
Total Assets		12,412	12,809
Current Liabilities
Short-term debt		350	608
Long-term debt due within one year		5	399
Accounts payable		259	291
Taxes		228	16
Interest		40	43
Price risk management liabilities		393	431
Liabilities held for sale		0	33
Counterparty collateral		22	79
Other current liabilities		182	188
Total Current Liabilities		1,479	2,088
Long-term Debt		3,896	3,787
Deferred Credits and Other Noncurrent Liabilities
Deferred income taxes		1,466	1,587
Investment tax credits		9	15
Price risk management liabilities		127	108
Accrued pension obligations		352	340
Asset retirement obligations		501	490
Other deferred credits and noncurrent liabilities		110	91
Total Deferred Credits and Other Noncurrent Liabilities		2,565	2,631
Commitments and Contingent Liabilities
Equity
Member's Equity		4,472	4,303
Total Liabilities and Equity		$ 12,412	$ 12,809

[1] 1,000,000 shares authorized at June 30, 2016 and December 31, 2015; 128,527 and 128,509 shares issued and outstanding at June 30, 2016 and December 31, 2015.