Balance Sheets (SYSTEM ENERGY RESOURCES, INC.) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Cash and cash equivalents:
Cash	$ 81,468	$ 76,290
Temporary cash investments	612,970	1,218,182
Total cash and cash equivalents	694,438	1,294,472
Accounts receivable:
Other	166,186	161,662
Total accounts receivable	1,001,868	1,035,582
Materials and supplies - at average cost	894,756	866,908
Deferred nuclear refueling outage costs	231,031	218,423
Prepaid taxes	0	301,807
Prepayments and other	291,742	246,036
TOTAL	3,622,703	4,339,083
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	3,788,031	3,595,716
TOTAL	4,509,766	4,300,206
UTILITY PLANT
Electric	39,385,524	37,153,061
Property under capital lease	809,449	800,078
Construction work in progress	1,779,723	1,661,560
Nuclear fuel	1,546,167	1,377,962
TOTAL UTILITY PLANT	43,864,413	41,323,269
Less - accumulated depreciation and amortization	18,255,128	17,474,914
UTILITY PLANT - NET	25,609,285	23,848,355
Regulatory assets:
Regulatory asset for income taxes - net	799,006	845,725
Other regulatory assets	4,636,871	3,838,237
Other	955,691	909,773
TOTAL	6,959,945	6,197,632
TOTAL ASSETS	40,701,699	38,685,276
CURRENT LIABILITIES
Currently maturing long-term debt	2,192,733	299,548
Accounts payable:
Associated companies	108,331	154,135
Taxes accrued	278,235	0
Accumulated deferred income taxes	99,929	49,307
Interest accrued	183,512	217,685
Obligations under capital leases	3,631	3,388
Other	283,531	277,598
TOTAL	4,950,699	2,776,249
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	8,096,452	8,573,646
Accumulated deferred investment tax credits	284,747	292,330
Obligations under capital leases	38,421	42,078
Other regulatory liabilities	728,193	539,026
Decommissioning and asset retirement cost liabilities	3,296,570	3,148,479
Accumulated provisions	385,512	395,250
Pension and other postretirement liabilities	3,133,657	2,175,364
Long-term debt	10,043,713	11,317,157
Other	501,954	618,559
TOTAL	26,509,219	27,101,889
Commitments and Contingencies
COMMON EQUITY
Common stock	2,548	2,548
Retained earnings	9,446,960	8,689,401
TOTAL	9,055,270	8,590,400
TOTAL LIABILITIES AND EQUITY	40,701,699	38,685,276
System Energy
Cash and cash equivalents:
Cash	30,961	903
Temporary cash investments	154,196	262,869
Total cash and cash equivalents	185,157	263,772
Accounts receivable:
Associated companies	172,943	147,180
Other	7,294	5,070
Total accounts receivable	180,237	152,250
Materials and supplies - at average cost	86,333	84,077
Deferred nuclear refueling outage costs	9,479	22,627
Prepaid taxes	0	68,039
Prepayments and other	1,111	1,142
TOTAL	462,317	591,907
OTHER PROPERTY AND INVESTMENTS
Decommissioning trust funds	423,409	387,876
TOTAL	423,409	387,876
UTILITY PLANT
Electric	3,438,424	3,362,422
Property under capital lease	491,023	489,175
Construction work in progress	357,826	210,536
Nuclear fuel	157,967	155,282
TOTAL UTILITY PLANT	4,445,240	4,217,415
Less - accumulated depreciation and amortization	2,518,190	2,417,811
UTILITY PLANT - NET	1,927,050	1,799,604
Regulatory assets:
Regulatory asset for income taxes - net	124,777	126,642
Other regulatory assets	287,796	296,715
Other	20,016	21,326
TOTAL	432,589	444,683
TOTAL ASSETS	3,245,365	3,224,070
CURRENT LIABILITIES
Currently maturing long-term debt	110,163	33,740
Short-term borrowings	0	38,264
Accounts payable:
Associated companies	8,032	6,520
Other	63,331	38,447
Taxes accrued	92,455	0
Accumulated deferred income taxes	3,428	8,508
Interest accrued	17,776	56,081
Other	2,591	2,258
TOTAL	297,776	183,818
NON-CURRENT LIABILITIES
Accumulated deferred income taxes and taxes accrued	652,418	617,012
Accumulated deferred investment tax credits	57,865	54,755
Other regulatory liabilities	214,745	201,364
Decommissioning and asset retirement cost liabilities	445,352	452,782
Pension and other postretirement liabilities	139,719	105,245
Long-term debt	636,885	796,728
Other	42	0
TOTAL	2,147,026	2,227,886
Commitments and Contingencies
COMMON EQUITY
Common stock	789,350	789,350
Retained earnings	11,213	23,016
TOTAL	800,563	812,366
TOTAL LIABILITIES AND EQUITY	$ 3,245,365	$ 3,224,070