v3.10.0.1
Consolidated Balance Sheets - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Current Assets:    
Cash and cash equivalents $ 1,396 $ 2,130
Receivables —    
Customer accounts receivable 1,726 1,806
Energy marketing receivable 801 607
Unbilled revenues 654 810
Under recovered fuel clause revenues 115 171
Other accounts and notes receivable 813 698
Accumulated provision for uncollectible accounts (50) (44)
Materials and supplies 1,465 1,438
Fossil fuel for generation 405 594
Natural gas for sale 524 595
Prepaid expenses 432 452
Assets from risk management activities, net of collateral 222 137
Other regulatory assets, current 525 604
Assets held for sale, current 393 12
Other current assets 162 62
Total current assets 9,583 10,072
Property, Plant, and Equipment:    
In service 103,706 103,542
Less: Accumulated depreciation 31,038 31,457
Plant in service, net of depreciation 72,668 72,085
Nuclear fuel, at amortized cost 875 883
Construction work in progress 7,254 6,904
Total property, plant, and equipment 80,797 79,872
Other Property and Investments:    
Goodwill 5,315 6,268
Equity investments in unconsolidated subsidiaries 1,580 1,513
Other intangible assets, net of amortization 613 873
Nuclear decommissioning trusts, at fair value 1,721 1,832
Leveraged leases 798 775
Miscellaneous property and investments 269 249
Total other property and investments 10,296 11,510
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 794 825
Unamortized loss on reacquired debt 323 206
Other regulatory assets 8,308 6,943
Disposal Group, Including Discontinued Operation, Assets, Noncurrent 5,350 0
Other deferred charges and assets 1,463 1,577
Total deferred charges and other assets 16,238 9,551
Total Assets 116,914 111,005
Current Liabilities:    
Securities due within one year 3,198 3,892
Notes payable 2,915 2,439
Accounts payable —    
Energy marketing trade payables 856 546
Accounts payable 2,580 2,530
Customer deposits 522 542
Accrued taxes 656 636
Accrued interest 472 488
Accrued compensation 1,030 959
Asset retirement obligations, current 404 351
Other regulatory liabilities, current 376 337
Liabilities held for sale, current 425 0
Other current liabilities 852 874
Total current liabilities 14,286 13,594
Long-Term Debt:    
Unamortized debt issuance expense (208) (226)
Total long-term debt 40,736 44,462
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 6,558 6,842
Deferred credits related to income taxes 6,460 7,256
Accumulated deferred ITCs 2,372 2,267
Employee benefit obligations 2,147 2,256
Asset retirement obligations 8,990 4,473
Accrued environmental remediation 268 389
Other cost of removal obligations 2,297 2,684
Other regulatory liabilities 169 239
Liabilities held for sale 2,836 0
Other deferred credits and liabilities 465 691
Total deferred credits and other liabilities 32,562 27,097
Total Liabilities 87,584 85,153
Common Stockholder's Equity:    
Common stock 5,164 5,038
Paid-in capital 11,094 10,469
Retained earnings 8,706 8,885
Accumulated other comprehensive income (loss) (203) (189)
Total common stockholders' equity 24,723 24,167
Redeemable Preferred Stock of Subsidiaries 291 324
Total Stockholders' Equity 29,039 25,528
Total Liabilities and Stockholder's Equity 116,914 111,005
Commitments and Contingent Matters
Alabama Power    
Current Assets:    
Cash and cash equivalents 313 544
Receivables —    
Customer accounts receivable 403 355
Unbilled revenues 150 162
Other accounts and notes receivable 51 55
Affiliated 94 43
Accumulated provision for uncollectible accounts (10) (9)
Materials and supplies 546 458
Fossil fuel for generation 141 184
Prepaid expenses 66 85
Other regulatory assets, current 137 124
Other current assets 18 5
Total current assets 1,909 2,006
Property, Plant, and Equipment:    
In service 30,402 27,326
Less: Accumulated depreciation 9,988 9,563
Plant in service, net of depreciation 20,414 17,763
Nuclear fuel, at amortized cost 324 339
Construction work in progress 1,113 908
Total property, plant, and equipment 21,851 19,010
Other Property and Investments:    
Equity investments in unconsolidated subsidiaries 65 67
Nuclear decommissioning trusts, at fair value 847 903
Miscellaneous property and investments 127 124
Total other property and investments 1,039 1,094
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 240 239
Deferred under recovered regulatory clause revenues 116 54
Other regulatory assets 1,386 1,272
Other deferred charges and assets 189 189
Total deferred charges and other assets 1,931 1,754
Total Assets 26,730 23,864
Current Liabilities:    
Securities due within one year 201 0
Accounts payable —    
Affiliated 364 327
Other 614 585
Customer deposits 96 92
Accrued taxes 44 54
Accrued interest 89 77
Accrued compensation 227 205
Asset retirement obligations, current 163 7
Other current liabilities 161 53
Total current liabilities 1,959 1,400
Long-Term Debt:    
Unamortized debt premium (discount), net (12) (11)
Unamortized debt issuance expense (54) (51)
Total long-term debt 7,923 7,628
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 2,962 2,760
Deferred credits related to income taxes 2,027 2,082
Accumulated deferred ITCs 106 112
Employee benefit obligations 314 304
Asset retirement obligations 3,047 1,702
Other cost of removal obligations 497 609
Other regulatory liabilities 69 84
Other deferred credits and liabilities 58 63
Total deferred credits and other liabilities 9,080 7,716
Total Liabilities 18,962 16,744
Redeemable Preferred Stock 291 291
Common Stockholder's Equity:    
Common stock 1,222 1,222
Paid-in capital 3,508 2,986
Retained earnings 2,775 2,647
Accumulated other comprehensive income (loss) (28) (26)
Total common stockholders' equity 7,477 6,829
Redeemable Preferred Stock of Subsidiaries 291 291
Total Stockholders' Equity 7,477 6,829
Total Liabilities and Stockholder's Equity 26,730 23,864
Commitments and Contingent Matters
Georgia Power    
Current Assets:    
Cash and cash equivalents 4 852
Restricted cash 108 0
Receivables —    
Customer accounts receivable 591 544
Unbilled revenues 208 255
Under recovered fuel clause revenues 115 165
Joint owner accounts receivable 170 262
Other accounts and notes receivable 80 76
Affiliated 39 24
Accumulated provision for uncollectible accounts (2) (3)
Materials and supplies 519 504
Fossil fuel for generation 231 314
Prepaid expenses 142 216
Other regulatory assets, current 199 205
Other current assets 70 14
Total current assets 2,474 3,428
Property, Plant, and Equipment:    
In service 37,675 34,861
Less: Accumulated depreciation 12,096 11,704
Plant in service, net of depreciation 25,579 23,157
Nuclear fuel, at amortized cost 550 544
Construction work in progress 4,833 4,613
Total property, plant, and equipment 30,962 28,314
Other Property and Investments:    
Equity investments in unconsolidated subsidiaries 51 53
Nuclear decommissioning trusts, at fair value 873 929
Miscellaneous property and investments 72 59
Total other property and investments 996 1,041
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 517 516
Other regulatory assets 4,902 2,932
Other deferred charges and assets 514 548
Total deferred charges and other assets 5,933 3,996
Total Assets 40,365 36,779
Current Liabilities:    
Securities due within one year 617 857
Notes payable 294 150
Accounts payable —    
Affiliated 575 493
Other 890 834
Customer deposits 276 270
Other accrued taxes 377 344
Accrued interest 105 123
Accrued compensation 221 219
Asset retirement obligations, current 202 270
Other regulatory liabilities, current 169 191
Other current liabilities 183 198
Total current liabilities 3,909 3,949
Long-Term Debt:    
Unamortized debt premium (discount), net (6) (12)
Unamortized debt issuance expense (108) (124)
Total long-term debt 9,364 11,073
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 3,062 3,175
Deferred credits related to income taxes 3,080 3,248
Accumulated deferred ITCs 262 248
Employee benefit obligations 599 659
Asset retirement obligations 5,627 2,368
Accrued environmental remediation 0 0
Other deferred credits and liabilities 139 128
Total deferred credits and other liabilities 12,769 9,826
Total Liabilities 26,042 24,848
Common Stockholder's Equity:    
Common stock 398 398
Paid-in capital 10,322 7,328
Retained earnings 3,612 4,215
Accumulated other comprehensive income (loss) (9) (10)
Total common stockholders' equity 14,323 11,931
Total Stockholders' Equity 14,323 11,931
Total Liabilities and Stockholder's Equity 40,365 36,779
Commitments and Contingent Matters
Mississippi Power    
Current Assets:    
Cash and cash equivalents 293 248
Receivables —    
Customer accounts receivable 34 36
Unbilled revenues 41 41
Other accounts and notes receivable 31 16
Affiliated 21 16
Materials and supplies 53 44
Fossil fuel for generation 20 17
Other regulatory assets, current 116 125
Prepaid income taxes 12 0
Other current assets 7 9
Total current assets 628 552
Property, Plant, and Equipment:    
In service 4,900 4,773
Less: Accumulated depreciation 1,429 1,325
Plant in service, net of depreciation 3,471 3,448
Construction work in progress 103 84
Total property, plant, and equipment 3,574 3,532
Other Property and Investments:    
Total other property and investments 24 30
Deferred Charges and Other Assets:    
Deferred charges related to income taxes 33 35
Other regulatory assets 474 437
Accumulated deferred income taxes 150 247
Other deferred charges and assets 3 33
Total deferred charges and other assets 660 752
Total Assets 4,886 4,866
Current Liabilities:    
Securities due within one year 40 989
Notes payable 0 4
Accounts payable —    
Affiliated 60 59
Other 90 96
Accrued taxes 0 40
Other accrued taxes 95 101
Accrued interest 15 16
Accrued compensation 38 39
Accrued plant closure costs 29 35
Asset retirement obligations, current 34 37
Over recovered regulatory clause liabilities 14 0
Other current liabilities 40 47
Total current liabilities 455 1,463
Long-Term Debt:    
Unamortized debt issuance expense (8) (7)
Total long-term debt 1,539 1,097
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 378 0
Deferred credits related to income taxes 382 372
Employee benefit obligations 115 116
Asset retirement obligations 126 137
Other cost of removal obligations 185 178
Other regulatory liabilities 81 79
Other deferred credits and liabilities 16 33
Total deferred credits and other liabilities 1,283 915
Total Liabilities 3,277 3,475
Redeemable Preferred Stock 0 33
Common Stockholder's Equity:    
Common stock 38 38
Paid-in capital 4,546 4,529
Retained earnings (2,971) (3,205)
Accumulated other comprehensive income (loss) (4) (4)
Total common stockholders' equity 1,609 1,358
Redeemable Preferred Stock of Subsidiaries 0 33
Total Stockholders' Equity 1,609 1,358
Total Liabilities and Stockholder's Equity 4,886 4,866
Commitments and Contingent Matters
Southern Power    
Current Assets:    
Cash and cash equivalents 181 129
Receivables —    
Customer accounts receivable 111 117
Other accounts and notes receivable 116 98
Affiliated 55 50
Materials and supplies 220 278
Prepaid income taxes 25 50
Other current assets 37 36
Total current assets 745 758
Property, Plant, and Equipment:    
In service 13,271 13,755
Less: Accumulated depreciation 2,171 1,910
Plant in service, net of depreciation 11,100 11,845
Construction work in progress 430 511
Total property, plant, and equipment 11,530 12,356
Other Property and Investments:    
Intangible assets, net of amortization 345 411
Total other property and investments 345 411
Deferred Charges and Other Assets:    
Prepaid LTSAs 98 118
Income taxes receivable, non-current 30 72
Disposal Group, Including Discontinued Operation, Assets, Noncurrent 576 0
Accumulated deferred income taxes 1,186 925
Other deferred charges and assets 373 566
Total deferred charges and other assets 2,263 1,681
Total Assets 14,883 15,206
Current Liabilities:    
Securities due within one year 599 770
Notes payable 100 105
Accounts payable —    
Affiliated 92 102
Other 77 103
Accrued taxes 6 4
Liabilities held for sale, current 15 0
Other current liabilities 142 148
Total current liabilities 1,031 1,232
Long-Term Debt:    
Unamortized debt premium (discount), net (9) (10)
Unamortized debt issuance expense (23) (28)
Total long-term debt 4,418 5,071
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 105 199
Accumulated deferred ITCs 1,832 1,884
Other deferred credits and liabilities 213 322
Total deferred credits and other liabilities 2,150 2,405
Total Liabilities 7,599 8,708
Common Stockholder's Equity:    
Common stock 0 0
Paid-in capital 1,600 3,662
Retained earnings 1,352 1,478
Accumulated other comprehensive income (loss) 16 (2)
Total common stockholders' equity 2,968 5,138
Noncontrolling Interests 4,316 1,360
Total Stockholders' Equity 7,284 6,498
Total Liabilities and Stockholder's Equity 14,883 15,206
Commitments and Contingent Matters
Southern Power | 1.95% due 2019    
Long-Term Debt:    
Senior notes 0 600
Southern Power | 2.375% due 2020    
Long-Term Debt:    
Senior notes 300 300
Southern Power | 2.50% due 2021    
Long-Term Debt:    
Senior notes 300 300
Southern Power | 1.00% due 2022    
Long-Term Debt:    
Senior notes 687 720
Southern Power | 2.75% due 2023    
Long-Term Debt:    
Senior notes 290 290
Southern Power | 1.85% to 5.25% due 2025-2046    
Long-Term Debt:    
Senior notes 2,348 2,374
Southern Power | Variable rate (3.34% at 12/31/18) due 2020    
Long-Term Debt:    
Other long-term debt 525 525
Southern Company Gas    
Current Assets:    
Cash and cash equivalents 64 73
Receivables —    
Customer accounts receivable 370 400
Energy marketing receivable 801 607
Unbilled revenues 213 285
Other accounts and notes receivable 142 91
Affiliated 11 12
Accumulated provision for uncollectible accounts (30) (28)
Natural gas for sale 524 595
Prepaid expenses 118 79
Assets from risk management activities, net of collateral 219 135
Other regulatory assets, current 73 94
Other current assets 50 52
Total current assets 2,555 2,395
Property, Plant, and Equipment:    
In service 15,177 15,833
Less: Accumulated depreciation 4,400 4,596
Plant in service, net of depreciation 10,777 11,237
Construction work in progress 580 491
Total property, plant, and equipment 11,357 11,728
Other Property and Investments:    
Goodwill 5,015 5,967
Equity investments in unconsolidated subsidiaries 1,538 1,477
Other intangible assets, net of amortization 101 280
Miscellaneous property and investments 20 21
Total other property and investments 6,674 7,745
Deferred Charges and Other Assets:    
Other regulatory assets 669 901
Other deferred charges and assets 193 218
Total deferred charges and other assets 862 1,119
Total Assets 21,448 22,987
Current Liabilities:    
Securities due within one year 357 157
Notes payable 650 1,518
Accounts payable —    
Affiliated 45 21
Other 402 425
Energy marketing trade payables 856 546
Customer deposits 133 128
Accrued taxes 66 40
Other accrued taxes 75 78
Accrued interest 55 51
Accrued compensation 100 74
Other regulatory liabilities, current 79 135
Liabilities from risk management activities 76 69
Other current liabilities 130 159
Total current liabilities 3,024 3,401
Long-Term Debt:    
Total long-term debt 5,583 5,891
Deferred Credits and Other Liabilities:    
Accumulated deferred income taxes 1,016 1,089
Deferred credits related to income taxes 940 1,063
Employee benefit obligations 357 415
Accrued environmental remediation 268 342
Other cost of removal obligations 1,585 1,646
Other deferred credits and liabilities 105 118
Total deferred credits and other liabilities 4,271 4,673
Total Liabilities 12,878 13,965
Common Stockholder's Equity:    
Paid-in capital 8,856 9,214
Retained earnings (312) (212)
Accumulated other comprehensive income (loss) 26 20
Total common stockholders' equity 8,570 9,022
Total Stockholders' Equity 8,570 9,022
Total Liabilities and Stockholder's Equity 21,448 22,987
Commitments and Contingent Matters
Securities due within one year | Mississippi Power    
Current Liabilities:    
Securities due within one year $ 40 $ 989