INTRODUCTION The condensed quarterly financial statements of each registrant included herein have been prepared by such registrant, without audit, pursuant to the rules and regulations of the SEC. The Condensed Balance Sheets as of December 31, 2018 have been derived from the audited financial statements of each registrant. In the opinion of each registrant's management, the information regarding such registrant furnished herein reflects all adjustments, which, except as otherwise disclosed, are of a normal recurring nature, necessary to present fairly the results of operations for the periods ended March 31, 2019 and 2018 . Certain information and footnote disclosures normally included in annual financial statements prepared in accordance with GAAP have been condensed or omitted pursuant to such rules and regulations, although each registrant believes that the disclosures regarding such registrant are adequate to make the information presented not misleading. Disclosures which would substantially duplicate the disclosures in the Form 10-K and details which have not changed significantly in amount or composition since the filing of the Form 10-K are generally omitted from this Quarterly Report on Form 10-Q unless specifically required by GAAP. Therefore, these Condensed Financial Statements should be read in conjunction with the financial statements and the notes thereto included in the Form 10-K. Due to the seasonal variations in the demand for energy, operating results for the periods presented are not necessarily indicative of the operating results to be expected for the full year. Certain prior year data presented in the financial statements have been reclassified to conform to the current year presentation. These reclassifications had no impact on the results of operations, financial position, or cash flows of any registrant. Recently Adopted Accounting Standards In 2016, the FASB issued ASU No. 2016-02, Leases (Topic 842) (ASU 2016-02). ASU 2016-02 requires lessees to recognize on the balance sheet a lease liability and a right-of-use asset for all leases. ASU 2016-02 also changes the recognition, measurement, and presentation of expense associated with leases and provides clarification regarding the identification of certain components of contracts that would represent a lease. The accounting required by lessors is relatively unchanged and there is no change to the accounting for existing leveraged leases. The registrants adopted the new standard effective January 1, 2019. See Note (L) for additional information and related disclosures. Goodwill and Other Intangible Assets Goodwill at March 31, 2019 and December 31, 2018 was as follows: At March 31, 2019 At December 31, 2018 (in millions) Southern Company $ 5,284 $ 5,315 Southern Company Gas: Gas distribution operations $ 4,034 $ 4,034 Gas marketing services 981 981 Southern Company Gas total $ 5,015 $ 5,015 Goodwill is not amortized but is subject to an annual impairment test during the fourth quarter of each year or more frequently if impairment indicators arise. Other intangible assets were as follows: At March 31, 2019 At December 31, 2018 Gross Carrying Amount Accumulated Amortization Other Intangible Assets, Net Gross Carrying Amount Accumulated Amortization Other Intangible Assets, Net (in millions) (in millions) Southern Company Other intangible assets subject to amortization: Customer relationships $ 211 $ (100 ) $ 111 $ 223 $ (94 ) $ 129 Trade names 70 (22 ) 48 70 (21 ) 49 Storage and transportation contracts 64 (56 ) 8 64 (54 ) 10 PPA fair value adjustments 405 (67 ) 338 405 (61 ) 344 Other 11 (6 ) 5 11 (5 ) 6 Total other intangible assets subject to amortization $ 761 $ (251 ) $ 510 $ 773 $ (235 ) $ 538 Other intangible assets not subject to amortization: Federal Communications Commission licenses 75  75 75  75 Total other intangible assets $ 836 $ (251 ) $ 585 $ 848 $ (235 ) $ 613 Southern Power Other intangible assets subject to amortization: PPA fair value adjustments $ 405 $ (67 ) $ 338 $ 405 $ (61 ) $ 344 Southern Company Gas Other intangible assets subject to amortization: Gas marketing services Customer relationships $ 156 $ (89 ) $ 67 $ 156 $ (84 ) $ 72 Trade names 26 (8 ) 18 26 (7 ) 19 Wholesale gas services Storage and transportation contracts 64 (56 ) 8 64 (54 ) 10 Total other intangible assets subject to amortization $ 246 $ (153 ) $ 93 $ 246 $ (145 ) $ 101 Amortization associated with other intangible assets was as follows: Three Months Ended March 31, 2019 (in millions) Southern Company $ 17 Southern Power (a) $ 6 Southern Company Gas Gas marketing services (b) $ 6 Wholesale gas services (a) 2 Southern Company Gas total $ 8 (a) Recorded as a reduction to operating revenues. (b) Included in depreciation and amortization. Restricted Cash At December 31, 2018, Georgia Power had restricted cash related to the redemption of pollution control revenue bonds, which were redeemed in January 2019. See Note (F) under " Financing Activities " for additional information. At both March 31, 2019 and December 31, 2018 , Southern Company Gas had restricted cash held as collateral for worker's compensation, life insurance, and long-term disability insurance. The following tables provide a reconciliation of cash, cash equivalents, and restricted cash reported within the condensed balance sheets that total to the amounts shown in the condensed statements of cash flows for the registrants that had restricted cash at March 31, 2019 and/or December 31, 2018 : Southern Company Southern Company Gas (in millions) At March 31, 2019 Cash and cash equivalents $ 1,361 $ 57 Restricted cash: Other accounts and notes receivable 4 4 Total cash, cash equivalents, and restricted cash $ 1,364 (*) $ 61 (*) Total does not add due to rounding. Southern Company Georgia Power Southern Company Gas (in millions) At December 31, 2018 Cash and cash equivalents $ 1,396 $ 4 $ 64 Cash and cash equivalents held for sale 9   Restricted cash: Restricted cash  108  Other accounts and notes receivable 114  6 Total cash, cash equivalents, and restricted cash $ 1,519 $ 112 $ 70 Natural Gas for Sale Southern Company Gas, with the exception of Nicor Gas, carries natural gas inventory on a WACOG basis. For any declines in market prices below the WACOG considered to be other than temporary, an adjustment is recorded to reduce the value of natural gas inventories to market value. Southern Company Gas had no material adjustment in any period presented. Nicor Gas' natural gas inventory is carried at cost on a LIFO basis. Inventory decrements occurring during the year that are restored prior to year end are charged to cost of natural gas at the estimated annual replacement cost. Inventory decrements that are not restored prior to year end are charged to cost of natural gas at the actual LIFO cost of the inventory layers liquidated. Nicor Gas' inventory decrement at March 31, 2019 is expected to be restored prior to year end.