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Condensed Consolidated Balance Sheets (Unaudited) - GAS - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Current Assets: |  |
Cash and cash equivalents | $ 1,018 | $ 748
Receivables — |  |
Customer accounts | 2,327 | 2,030
Unbilled revenues | 556 | 786
Other accounts and notes | 909 | 519
Accumulated provision for uncollectible accounts | (64) | (68)
Materials and supplies | 2,169 | 1,989
Natural gas for sale | 417 | 420
Prepaid expenses | 391 | 406
Other regulatory assets | 877 | 1,120
Other current assets | 562 | 569
Total current assets | 11,040 | 10,432
Property, Plant, and Equipment: |  |
In service | 134,889 | 128,428
Less: Accumulated depreciation | 39,536 | 37,725
Plant in service, net of depreciation | 95,353 | 90,703
Construction work in progress | 6,232 | 7,784
Total property, plant, and equipment | 102,897 | 99,844
Other Property and Investments: |  |
Goodwill | 5,161 | 5,161
Equity investments in unconsolidated subsidiaries | 1,414 | 1,368
Other intangible assets, net of amortization | 341 | 368
Miscellaneous property and investments | 657 | 665
Total other property and investments | 10,223 | 9,986
Deferred Charges and Other Assets: |  |
Operating lease right-of-use assets, net of amortization | 1,415 | 1,432
Prepaid pension costs | 2,375 | 2,079
Other regulatory assets, deferred | 7,531 | 6,264
Other deferred charges and assets | 1,484 | 1,468
Total deferred charges and other assets | 19,796 | 19,069
Total Assets | 143,956 | 139,331
Current Liabilities: |  |
Securities due within one year | 1,642 | 2,476
Notes payable | 722 | 2,314
Accounts payable — |  |
Customer deposits | 491 | 503
Accrued interest | 570 | 652
Accrued compensation | 1,065 | 1,151
Natural gas cost over recovery | 226 | 214
Other regulatory liabilities | 214 | 141
Other current liabilities | 1,104 | 1,029
Total current liabilities | 12,165 | 13,467
Long-term Debt | 61,254 | 57,210
Deferred Credits and Other Liabilities: |  |
Accumulated deferred income taxes | 11,727 | 10,990
Deferred credits related to income taxes | 4,587 | 4,674
Employee benefit obligations | 1,064 | 1,115
Operating lease obligations, deferred | 1,267 | 1,307
Other cost of removal obligations | 2,006 | 1,957
Other deferred credits and liabilities | 1,075 | 1,031
Total deferred credits and other liabilities | 33,632 | 33,429
Total Liabilities | 107,051 | 104,106
Total Stockholders' Equity | 36,905 | 35,225
Total Liabilities and Stockholders' Equity | 143,956 | 139,331
SOUTHERN Co GAS |  |
Current Assets: |  |
Cash and cash equivalents | 44 | 33
Receivables — |  |
Customer accounts | 215 | 405
Unbilled revenues | 63 | 261
Other accounts and notes | 54 | 47
Accumulated provision for uncollectible accounts | (31) | (44)
Materials and supplies | 68 | 66
Natural gas for sale | 417 | 420
Prepaid expenses | 74 | 107
Other regulatory assets | 220 | 141
Other current assets | 43 | 50
Total current assets | 1,167 | 1,486
Property, Plant, and Equipment: |  |
In service | 21,753 | 20,840
Less: Accumulated depreciation | 5,790 | 5,534
Plant in service, net of depreciation | 15,963 | 15,306
Construction work in progress | 1,194 | 1,110
Total property, plant, and equipment | 17,157 | 16,416
Other Property and Investments: |  |
Goodwill | 5,015 | 5,015
Equity investments in unconsolidated subsidiaries | 1,279 | 1,235
Other intangible assets, net of amortization | 11 | 16
Miscellaneous property and investments | 25 | 25
Total other property and investments | 6,330 | 6,291
Deferred Charges and Other Assets: |  |
Operating lease right-of-use assets, net of amortization | 41 | 47
Prepaid pension costs | 175 | 158
Other regulatory assets, deferred | 486 | 504
Other deferred charges and assets | 189 | 181
Total deferred charges and other assets | 891 | 890
Total Assets | 25,545 | 25,083
Current Liabilities: |  |
Securities due within one year | 50 | 0
Notes payable | 63 | 415
Accounts payable — |  |
Customer deposits | 105 | 126
Accrued taxes | 68 | 77
Accrued interest | 72 | 77
Accrued compensation | 106 | 112
Natural gas cost over recovery | 226 | 214
Other regulatory liabilities | 6 | 19
Other current liabilities | 136 | 155
Total current liabilities | 1,247 | 1,708
Long-term Debt | 8,387 | 7,833
Deferred Credits and Other Liabilities: |  |
Accumulated deferred income taxes | 1,861 | 1,671
Deferred credits related to income taxes | 764 | 759
Employee benefit obligations | 106 | 110
Operating lease obligations, deferred | 33 | 40
Other cost of removal obligations | 1,833 | 1,771
Accrued environmental remediation | 204 | 192
Other deferred credits and liabilities | 182 | 196
Total deferred credits and other liabilities | 4,983 | 4,739
Total Liabilities | 14,617 | 14,280
Total Stockholders' Equity | 10,928 | 10,803
Total Liabilities and Stockholders' Equity | 25,545 | 25,083
SOUTHERN Co GAS | Related Party |  |
Accounts payable — |  |
Affiliated and Other | 48 | 89
SOUTHERN Co GAS | Nonrelated Party |  |
Accounts payable — |  |
Affiliated and Other | $ 367 | $ 424

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