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Consolidated Balance Sheets - GAS - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Current Assets: |  |
Cash and cash equivalents | $ 748 | $ 1,917
Receivables — |  |
Customer accounts | 2,030 | 2,128
Unbilled revenues | 786 | 1,012
Other accounts and notes | 519 | 637
Accumulated provision for uncollectible accounts | (68) | (71)
Natural gas for sale | 420 | 438
Prepaid expenses | 406 | 347
Natural gas cost under recovery | 0 | 108
Other regulatory assets | 1,120 | 860
Other current assets | 533 | 344
Total current assets | 10,432 | 10,416
Property, Plant, and Equipment: |  |
In service | 128,428 | 117,529
Less: Accumulated depreciation | 37,725 | 35,297
Plant in service, net of depreciation | 90,703 | 82,232
Construction work in progress | 7,784 | 10,896
Total property, plant, and equipment | 99,844 | 94,570
Other Property and Investments: |  |
Goodwill | 5,161 | 5,161
Equity investments in unconsolidated subsidiaries | 1,368 | 1,443
Other intangible assets, net of amortization | 368 | 406
Miscellaneous property and investments | 665 | 602
Total other property and investments | 9,986 | 9,757
Deferred Charges and Other Assets: |  |
Operating lease right-of-use assets, net of amortization | 1,432 | 1,531
Prepaid pension costs | 2,079 | 2,290
Other regulatory assets, deferred | 6,264 | 5,918
Other deferred charges and assets | 1,468 | 1,485
Total deferred charges and other assets | 19,069 | 20,148
Total Assets | 139,331 | 134,891
Current Liabilities: |  |
Securities due within one year | 2,476 | 4,285
Notes payable | 2,314 | 2,609
Accounts payable — |  |
Customer deposits | 503 | 502
Accrued compensation | 1,151 | 1,127
Natural gas cost over recovery | 214 | 0
Other regulatory liabilities | 141 | 382
Other current liabilities | 1,029 | 787
Total current liabilities | 13,467 | 15,724
Long-Term Debt | 57,210 | 50,656
Deferred Credits and Other Liabilities: |  |
Accumulated deferred income taxes | 10,990 | 10,036
Deferred credits related to income taxes | 4,674 | 5,235
Employee benefit obligations | 1,115 | 1,238
Operating lease obligations | 1,307 | 1,388
Other cost of removal obligations | 1,957 | 1,903
Other deferred credits and liabilities | 1,031 | 1,167
Total deferred credits and other liabilities | 33,429 | 33,979
Total Liabilities | 104,106 | 100,359
Common Stockholders' Equity: |  |
Paid-in capital | 13,775 | 13,673
Accumulated deficit | 12,482 | 11,538
Accumulated other comprehensive income (loss) | (177) | (167)
Total common stockholders' equity | 31,444 | 30,408
Total Liabilities and Stockholders' Equity | 139,331 | 134,891
Commitments and Contingent Matters |  |
Operating lease obligations - current | 183 | 197
Southern Company Gas |  |
Current Assets: |  |
Cash and cash equivalents | 33 | 81
Receivables — |  |
Customer accounts | 405 | 616
Unbilled revenues | 261 | 453
Other accounts and notes | 47 | 76
Accumulated provision for uncollectible accounts | (44) | (50)
Natural gas for sale | 420 | 438
Prepaid expenses | 107 | 93
Natural gas cost under recovery | 0 | 108
Other regulatory assets | 141 | 119
Other current assets | 116 | 104
Total current assets | 1,486 | 2,038
Property, Plant, and Equipment: |  |
In service | 20,840 | 19,723
Less: Accumulated depreciation | 5,534 | 5,276
Plant in service, net of depreciation | 15,306 | 14,447
Construction work in progress | 1,110 | 909
Total property, plant, and equipment | 16,416 | 15,356
Other Property and Investments: |  |
Goodwill | 5,015 | 5,015
Equity investments in unconsolidated subsidiaries | 1,235 | 1,276
Other intangible assets, net of amortization | 16 | 26
Miscellaneous property and investments | 25 | 28
Total other property and investments | 6,291 | 6,345
Deferred Charges and Other Assets: |  |
Operating lease right-of-use assets, net of amortization | 47 | 57
Prepaid pension costs | 158 | 183
Other regulatory assets, deferred | 504 | 497
Other deferred charges and assets | 181 | 145
Total deferred charges and other assets | 890 | 882
Total Assets | 25,083 | 24,621
Current Liabilities: |  |
Securities due within one year | 0 | 400
Notes payable | 415 | 768
Accounts payable — |  |
Affiliated and other | 424 | 701
Customer deposits | 126 | 125
Accrued taxes | 77 | 77
Accrued compensation | 112 | 105
Natural gas cost over recovery | 214 | 0
Other regulatory liabilities | 19 | 36
Other current liabilities | 232 | 254
Total current liabilities | 1,708 | 2,570
Long-Term Debt | 7,833 | 7,042
Deferred Credits and Other Liabilities: |  |
Accumulated deferred income taxes | 1,671 | 1,560
Deferred credits related to income taxes | 759 | 788
Employee benefit obligations | 110 | 120
Operating lease obligations | 40 | 51
Other cost of removal obligations | 1,771 | 1,707
Accrued environmental remediation | 192 | 207
Other deferred credits and liabilities | 196 | 179
Total deferred credits and other liabilities | 4,739 | 4,612
Total Liabilities | 14,280 | 14,224
Common Stockholders' Equity: |  |
Paid-in capital | 10,836 | 10,445
Accumulated deficit | (49) | (79)
Accumulated other comprehensive income (loss) | 16 | 31
Total common stockholders' equity | 10,803 | 10,397
Total Liabilities and Stockholders' Equity | 25,083 | 24,621
Commitments and Contingent Matters |  |
Operating lease obligations - current | 11 | 9
Southern Company Gas | Related Party |  |
Accounts payable — |  |
Affiliated and other | $ 89 | $ 104

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