CONSOLIDATED BALANCE SHEETS (APSC) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012
PROPERTY, PLANT AND EQUIPMENT (Notes 1, 6 and 10)
Plant in service and held for future use	$ 15,200,464	$ 14,346,367
Accumulated depreciation and amortization	(5,300,219)	(4,929,613)
Net	9,900,245	9,416,754
Construction work in progress	581,369	565,716
Palo Verde sale leaseback, net of accumulated depreciation of $225,925 and $222,055 (Note 19)	125,125	128,995
Intangible assets, net of accumulated amortization of $439,703 and $411,543	157,689	162,150
Nuclear fuel, net of accumulated amortization of $146,057 and $133,950	124,557	122,778
Total property, plant and equipment	10,888,985	10,396,393
INVESTMENTS AND OTHER ASSETS
Nuclear decommissioning trust (Notes 14 and 20)	642,007	570,625
Assets from risk management activities (Note 17)	23,815	35,891
Other assets	60,875	62,694
Total investments and other assets	726,697	669,210
CURRENT ASSETS
Cash and cash equivalents	9,526	26,202
Customer and other receivables	299,904	277,225
Accrued unbilled revenues	96,796	94,845
Allowance for doubtful accounts	(3,203)	(3,340)
Materials and supplies (at average cost)	221,682	218,096
Fossil fuel (at average cost)	38,028	31,334
Income tax receivable	135,517	2,423
Assets from risk management activities (Note 17)	17,169	25,699
Deferred fuel and purchased power regulatory asset (Note 3)	20,755	72,692
Other regulatory assets (Note 3)	76,388	71,257
Deferred income taxes (Notes 4 and S-1)	91,152	152,191
Other current assets	39,895	37,102
Total current assets	1,043,609	1,005,726
DEFERRED DEBITS
Regulatory assets (Notes 1, 3, 4 and S-1)	711,712	1,099,900
Income tax receivable (Notes 4 and S-1)		70,389
Other	137,683	137,997
Total deferred debits	849,395	1,308,286
TOTAL ASSETS	13,508,686	13,379,615
CAPITALIZATION
Common stock	2,487,250	2,462,712
Retained earnings	1,785,273	1,624,102
Accumulated other comprehensive (loss):
Pension and other postretirement benefits (Note 8)	(54,995)	(64,416)
Derivative instruments (Note 17)	(23,058)	(49,592)
Total shareholders' equity	4,194,470	3,972,806
Noncontrolling interests (Note 19)	145,990	129,483
Total equity	4,340,460	4,102,289
Long-term debt less current maturities (Note 6)		3,160,219
CURRENT LIABILITIES
Short-term borrowings (Note 5)	153,125	92,175
Current maturities of long-term debt (Note 6)	540,424	122,828
Accounts payable	284,516	221,312
Accrued taxes (Notes 4 and S-1)	130,998	124,939
Accrued interest	48,351	49,380
Common dividends payable	62,528	59,789
Customer deposits	76,101	79,689
Liabilities from risk management activities (Note 17)	31,892	73,741
Regulatory liabilities (Note 3)	99,273	88,116
Other current liabilities	158,540	171,573
Total current liabilities	1,618,644	1,083,542
DEFERRED CREDITS AND OTHER
Deferred income taxes (Notes 4 and S-1)	2,351,882	2,151,371
Regulatory liabilities (Notes 1, 3, 4, and S-1)	801,297	759,201
Liability for asset retirements (Note 12)	313,833	357,097
Liabilities for pension and other postretirement benefits (Note 8)	513,628	1,058,755
Liabilities from risk management activities (Note 17)	70,315	85,264
Customer advances	114,480	109,359
Coal mine reclamation	207,453	118,860
Deferred investment tax credit	152,361	99,819
Unrecognized tax benefits (Notes 4 and S-1)	42,209	71,135
Other	185,659	183,835
Total deferred credits and other	4,753,117	4,994,696
COMMITMENTS AND CONTINGENCIES (SEE NOTES)
TOTAL LIABILITIES AND EQUITY	13,508,686	13,379,615
ARIZONA PUBLIC SERVICE COMPANY
PROPERTY, PLANT AND EQUIPMENT (Notes 1, 6 and 10)
Plant in service and held for future use	15,196,598	14,342,501
Accumulated depreciation and amortization	(5,296,501)	(4,925,990)
Net	9,900,097	9,416,511
Construction work in progress	581,369	565,716
Palo Verde sale leaseback, net of accumulated depreciation of $225,925 and $222,055 (Note 19)	125,125	128,995
Intangible assets, net of accumulated amortization of $439,703 and $411,543	157,534	161,995
Nuclear fuel, net of accumulated amortization of $146,057 and $133,950	124,557	122,778
Total property, plant and equipment	10,888,682	10,395,995
INVESTMENTS AND OTHER ASSETS
Nuclear decommissioning trust (Notes 14 and 20)	642,007	570,625
Assets from risk management activities (Note 17)	23,815	35,891
Other assets	33,709	31,650
Total investments and other assets	699,531	638,166
CURRENT ASSETS
Cash and cash equivalents	3,725	3,499
Customer and other receivables	299,055	274,815
Accrued unbilled revenues	96,796	94,845
Allowance for doubtful accounts	(3,203)	(3,340)
Materials and supplies (at average cost)	221,682	218,096
Fossil fuel (at average cost)	38,028	31,334
Income tax receivable	135,179	589
Assets from risk management activities (Note 17)	17,169	25,699
Deferred fuel and purchased power regulatory asset (Note 3)	20,755	72,692
Other regulatory assets (Note 3)	76,388	71,257
Deferred income taxes (Notes 4 and S-1)	(2,033)	74,420
Deferred income taxes (Notes 4 and S-1)	0	74,420
Other current assets	39,153	37,077
Total current assets	944,727	900,983
DEFERRED DEBITS
Regulatory assets (Notes 1, 3, 4 and S-1)	711,712	1,099,900
Income tax receivable (Notes 4 and S-1)		70,784
Unamortized debt issue costs	21,860	22,492
Other	114,865	114,222
Total deferred debits	848,437	1,307,398
TOTAL ASSETS	13,381,377	13,242,542
CAPITALIZATION
Common stock	178,162	178,162
Additional paid-in capital	2,379,696	2,379,696
Retained earnings	1,804,398	1,624,237
Accumulated other comprehensive (loss):
Pension and other postretirement benefits (Note 8)	(30,313)	(39,503)
Derivative instruments (Note 17)	(23,059)	(49,592)
Total shareholders' equity	4,308,884	4,093,000
Noncontrolling interests (Note 19)	145,990	129,483
Total equity	4,454,874	4,222,483
Long-term debt less current maturities (Note 6)	2,671,465	3,074,088
Total capitalization	7,126,339	7,296,571
CURRENT LIABILITIES
Short-term borrowings (Note 5)	153,125	92,175
Current maturities of long-term debt (Note 6)	540,424	122,828
Accounts payable	281,237	215,577
Accrued taxes (Notes 4 and S-1)	122,460	116,700
Accrued interest	48,132	49,135
Common dividends payable	62,500	59,800
Customer deposits	76,101	79,689
Deferred income taxes	2,033
Liabilities from risk management activities (Note 17)	31,892	73,741
Liabilities for asset retirements (Note 12)	32,896
Regulatory liabilities (Note 3)	99,273	88,116
Other current liabilities	130,774	145,326
Total current liabilities	1,580,847	1,043,087
DEFERRED CREDITS AND OTHER
Deferred income taxes (Notes 4 and S-1)	2,347,724	2,133,976
Regulatory liabilities (Notes 1, 3, 4, and S-1)	801,297	759,201
Liability for asset retirements (Note 12)	313,833	357,097
Liabilities for pension and other postretirement benefits (Note 8)	476,017	1,017,556
Liabilities from risk management activities (Note 17)	70,315	85,264
Customer advances	114,480	109,359
Coal mine reclamation	207,453	118,860
Deferred investment tax credit	152,361	99,819
Unrecognized tax benefits (Notes 4 and S-1)	42,209	70,932
Other	148,502	150,820
Total deferred credits and other	4,674,191	4,902,884
TOTAL LIABILITIES AND EQUITY	$ 13,381,377	$ 13,242,542