SOUTHERN CO Pension and Other Postretirement Benefits Cost (Reversal of Cost)
SOUTHERN CO (SO) reported Pension and Other Postretirement Benefits Cost (Reversal of Cost) of -$149.00 million for the 3-month period ending 2026-03-31, per its 10-Q filed 2026-04-30.
Financial Statements › Expense Statement › Operating Expenses
us-gaap:PensionAndOtherPostretirementBenefitExpense · last filed 2026-04-30
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for the quarter ending 2026-03-31 was -$149.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for the quarter ending 2025-12-31 was -$165.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for the quarter ending 2025-09-30 was -$161.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for the quarter ending 2025-06-30 was -$104.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for fiscal 2025 was -$579.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for fiscal 2024 was -$556.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for fiscal 2023 was -$527.00M.
- SOUTHERN CO pension and other postretirement benefits cost (reversal of cost) for fiscal 2022 was -$436.00M.
| Period end | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 3 month | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 3 month as first filed | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 6 month | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 6 month as first filed | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 9 month | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 9 month as first filed | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 12 month | Pension and Other Postretirement Benefits Cost (Reversal of Cost) 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-03-31 | -$149.00M 10-Q · filed 2026-04-30 | -$314.00M derived: sum of 2 quarters · filed 2026-04-30 | -$475.00M derived: sum of 3 quarters · filed 2026-04-30 | -$579.00M derived: sum of 4 quarters · filed 2026-04-30 | ||||
| 2025-12-31 | -$165.00M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-19 | -$326.00M derived: sum of 2 quarters · filed 2026-02-19 | -$430.00M derived: sum of 3 quarters · filed 2026-02-19 | -$579.00M 10-K · filed 2026-02-19 | ||||
| 2025-09-30 | -$161.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-10-30 | -$265.00M derived: sum of 2 quarters · filed 2025-10-30 | -$414.00M 10-Q · filed 2025-10-30 | -$579.00M derived: sum of 4 quarters · filed 2026-04-30 | ||||
| 2025-06-30 | -$104.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2025-07-31 | -$253.00M 10-Q · filed 2025-07-31 | -$418.00M derived: sum of 3 quarters · filed 2026-04-30 | -$577.00M derived: sum of 4 quarters · filed 2026-04-30 | ||||
| 2025-03-31 | -$149.00M 10-Q · filed 2026-04-30 | -$314.00M derived: sum of 2 quarters · filed 2026-04-30 | -$473.00M derived: sum of 3 quarters · filed 2026-04-30 | -$576.00M derived: sum of 4 quarters · filed 2026-04-30 | ||||
| 2024-12-31 | -$165.00M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-19 | -$324.00M derived: sum of 2 quarters · filed 2026-02-19 | -$427.00M derived: sum of 3 quarters · filed 2026-02-19 | -$556.00M 10-K · filed 2026-02-19 | ||||
| 2024-09-30 | -$159.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-10-30 | -$262.00M derived: sum of 2 quarters · filed 2025-10-30 | -$391.00M 10-Q · filed 2025-10-30 | -$521.00M derived: sum of 4 quarters · filed 2026-02-19 | ||||
| 2024-06-30 | -$103.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2025-07-31 | -$232.00M 10-Q · filed 2025-07-31 | -$362.00M derived: sum of 3 quarters · filed 2026-02-19 | -$514.00M derived: sum of 4 quarters · filed 2026-02-19 | ||||
| 2024-03-31 | -$129.00M 10-Q · filed 2025-05-01 | -$259.00M derived: sum of 2 quarters · filed 2026-02-19 | -$411.00M derived: sum of 3 quarters · filed 2026-02-19 | -$530.00M derived: sum of 4 quarters · filed 2026-02-19 | ||||
| 2023-12-31 | -$130.00M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-19 | -$282.00M derived: sum of 2 quarters · filed 2026-02-19 | -$401.00M derived: sum of 3 quarters · filed 2026-02-19 | -$527.00M 10-K · filed 2026-02-19 | ||||
| 2023-09-30 | -$152.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2024-10-31 | -$271.00M derived: sum of 2 quarters · filed 2024-10-31 | -$397.00M 10-Q · filed 2024-10-31 | -$511.00M derived: sum of 4 quarters · filed 2025-02-20 | ||||
| 2023-06-30 | -$119.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2024-08-01 | -$245.00M 10-Q · filed 2024-08-01 | -$359.00M derived: sum of 3 quarters · filed 2025-02-20 | -$470.00M derived: sum of 4 quarters · filed 2025-02-20 | ||||
| 2023-03-31 | -$126.00M 10-Q · filed 2024-05-02 | -$240.00M derived: sum of 2 quarters · filed 2025-02-20 | -$351.00M derived: sum of 3 quarters · filed 2025-02-20 | -$439.00M derived: sum of 4 quarters · filed 2025-02-20 | ||||
| 2022-12-31 | -$114.00M derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-20 | -$225.00M derived: sum of 2 quarters · filed 2025-02-20 | -$313.00M derived: sum of 3 quarters · filed 2025-02-20 | -$436.00M 10-K · filed 2025-02-20 | ||||
| 2022-09-30 | -$111.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2023-11-02 | -$199.00M derived: sum of 2 quarters · filed 2023-11-02 | -$322.00M 10-Q · filed 2023-11-02 | -$409.00M derived: sum of 4 quarters · filed 2024-02-15 | ||||
| 2022-06-30 | -$88.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2023-08-03 | -$211.00M 10-Q · filed 2023-08-03 | -$298.00M derived: sum of 3 quarters · filed 2024-02-15 | -$401.00M derived: sum of 4 quarters · filed 2024-02-15 | ||||
| 2022-03-31 | -$123.00M 10-Q · filed 2023-04-27 | -$210.00M derived: sum of 2 quarters · filed 2024-02-15 | -$313.00M derived: sum of 3 quarters · filed 2024-02-15 | -$350.00M derived: sum of 4 quarters · filed 2024-02-15 | ||||
| 2021-12-31 | -$87.00M derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-15 | -$190.00M derived: sum of 2 quarters · filed 2024-02-15 | -$227.00M derived: sum of 3 quarters · filed 2024-02-15 | -$305.00M 10-K · filed 2024-02-15 | ||||
| 2021-09-30 | -$103.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2022-10-27 | -$140.00M derived: sum of 2 quarters · filed 2022-10-27 | -$218.00M 10-Q · filed 2022-10-27 | -$289.00M derived: sum of 4 quarters · filed 2023-02-16 | ||||
| 2021-06-30 | -$37.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2022-07-28 | -$115.00M 10-Q · filed 2022-07-28 | -$186.00M derived: sum of 3 quarters · filed 2023-02-16 | -$257.00M derived: sum of 4 quarters · filed 2023-02-16 | ||||
| 2021-03-31 | -$78.00M 10-Q · filed 2022-04-28 | -$149.00M derived: sum of 2 quarters · filed 2023-02-16 | -$220.00M derived: sum of 3 quarters · filed 2023-02-16 | -$272.00M derived: sum of 4 quarters · filed 2023-02-16 | ||||
| 2020-12-31 | -$71.00M derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-16 | -$142.00M derived: sum of 2 quarters · filed 2023-02-16 | -$194.00M derived: sum of 3 quarters · filed 2023-02-16 | -$261.00M 10-K · filed 2023-02-16 | -$259.00M 10-K · filed 2021-02-18 | |||
| 2020-09-30 | -$71.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-04 | -$123.00M derived: sum of 2 quarters · filed 2021-11-04 | -$190.00M 10-Q · filed 2021-11-04 | -$280.00M derived: sum of 4 quarters · filed 2022-02-17 | ||||
| 2020-06-30 | -$52.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2021-07-29 | -$119.00M 10-Q · filed 2021-07-29 | -$209.00M derived: sum of 3 quarters · filed 2022-02-17 | -$258.00M derived: sum of 4 quarters · filed 2022-02-17 | ||||
| 2020-03-31 | -$67.00M 10-Q · filed 2021-04-29 | -$157.00M derived: sum of 2 quarters · filed 2022-02-17 | -$206.00M derived: sum of 3 quarters · filed 2022-02-17 | -$218.00M derived: sum of 4 quarters · filed 2022-02-17 | ||||
| 2019-12-31 | -$90.00M derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-17 | -$139.00M derived: sum of 2 quarters · filed 2022-02-17 | -$151.00M derived: sum of 3 quarters · filed 2022-02-17 | -$204.00M 10-K · filed 2022-02-17 | ||||
| 2019-09-30 | -$49.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2020-10-29 | -$61.00M derived: sum of 2 quarters · filed 2020-10-29 | -$114.00M 10-Q · filed 2020-10-29 | -$157.00M derived: sum of 4 quarters · filed 2021-02-18 | ||||
| 2019-06-30 | -$12.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2020-07-30 | -$65.00M 10-Q · filed 2020-07-30 | -$108.00M derived: sum of 3 quarters · filed 2021-02-18 | -$94.00M derived: sum of 4 quarters · filed 2021-02-18 | ||||
| 2019-03-31 | -$53.00M 10-Q · filed 2020-04-30 | -$96.00M derived: sum of 2 quarters · filed 2021-02-18 | -$82.00M derived: sum of 3 quarters · filed 2021-02-18 | -$129.00M derived: sum of 4 quarters · filed 2021-02-18 | ||||
| 2018-12-31 | -$43.00M derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-18 | -$29.00M derived: sum of 2 quarters · filed 2021-02-18 | -$76.00M derived: sum of 3 quarters · filed 2021-02-18 | -$103.00M 10-K · filed 2021-02-18 | ||||
| 2018-09-30 | $14.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2019-10-30 | -$33.00M derived: sum of 2 quarters · filed 2019-10-30 | -$60.00M 10-Q · filed 2019-10-30 | -$80.00M derived: sum of 4 quarters · filed 2020-02-20 | ||||
| 2018-06-30 | -$47.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2019-07-31 | -$74.00M 10-Q · filed 2019-07-31 | -$94.00M derived: sum of 3 quarters · filed 2020-02-20 | -$75.00M derived: sum of 4 quarters · filed 2020-02-20 | ||||
| 2018-03-31 | -$27.00M 10-Q · filed 2019-05-01 | -$47.00M derived: sum of 2 quarters · filed 2020-02-20 | -$28.00M derived: sum of 3 quarters · filed 2020-02-20 | |||||
| 2017-12-31 | -$20.00M derived: 10-K 12 month − 10-Q 9 month · filed 2020-02-20 | -$1.00M derived: sum of 2 quarters · filed 2020-02-20 | -$84.00M 10-K · filed 2020-02-20 | |||||
| 2017-09-30 | $19.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-07 | -$64.00M 10-Q · filed 2018-11-07 | ||||||
| 2017-06-30 | -$83.00M 10-Q · filed 2018-08-08 | |||||||
| 2016-12-31 | $93.00M derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-22 | -$9.00M derived: sum of 2 quarters · filed 2017-11-01 | -$65.00M 10-K · filed 2017-02-22 | |||||
| 2016-09-30 | -$102.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-01 | -$158.00M 10-Q · filed 2017-11-01 | ||||||
| 2016-06-30 | -$56.00M 10-Q · filed 2017-08-02 | |||||||
| 2015-12-31 | $4.00M derived: 10-K 12 month − 10-Q 9 month · filed 2017-02-22 | $83.00M 10-K · filed 2017-02-22 | $76.00M 10-K · filed 2016-02-26 | |||||
| 2015-09-30 | $79.00M 10-Q · filed 2016-11-04 | |||||||
| 2014-12-31 | -$9.00M 10-K · filed 2017-02-22 | -$515.00M 10-K · filed 2015-03-02 | ||||||
| 2013-12-31 | $131.00M 10-K · filed 2016-02-26 | |||||||
| 2013-09-30 | $124.00M 10-Q · filed 2013-11-06 | |||||||
| 2013-06-30 | $41.00M 10-Q · filed 2013-08-06 | |||||||
| 2013-03-31 | $22.00M 10-Q · filed 2013-05-10 | -$454.00M derived: sum of 2 quarters · filed 2015-03-02 | -$389.00M derived: sum of 3 quarters · filed 2015-03-02 | -$392.00M derived: sum of 4 quarters · filed 2015-03-02 | ||||
| 2012-12-31 | -$476.00M derived: 10-K 12 month − 10-Q 9 month · filed 2015-03-02 | -$411.00M derived: sum of 2 quarters · filed 2015-03-02 | -$414.00M derived: sum of 3 quarters · filed 2015-03-02 | -$398.00M 10-K · filed 2015-03-02 | ||||
| 2012-09-30 | $65.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2012-11-07 | $62.00M derived: sum of 2 quarters · filed 2012-11-07 | $78.00M 10-Q · filed 2012-11-07 | $34.00M derived: sum of 4 quarters · filed 2014-02-27 | ||||
| 2012-06-30 | -$3.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2012-08-06 | $13.00M 10-Q · filed 2012-08-06 | -$31.00M derived: sum of 3 quarters · filed 2014-02-27 | $6.00M derived: sum of 4 quarters · filed 2014-02-27 | ||||
| 2012-03-31 | $16.00M 10-Q · filed 2013-05-10 | -$28.00M derived: sum of 2 quarters · filed 2014-02-27 | $9.00M derived: sum of 3 quarters · filed 2014-02-27 | -$18.00M derived: sum of 4 quarters · filed 2014-02-27 | ||||
| 2011-12-31 | -$44.00M derived: 10-K 12 month − 10-Q 9 month · filed 2014-02-27 | -$7.00M derived: sum of 2 quarters · filed 2014-02-27 | -$34.00M derived: sum of 3 quarters · filed 2014-02-27 | -$45.00M 10-K · filed 2014-02-27 | ||||
| 2011-09-30 | $37.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2012-11-07 | $10.00M derived: sum of 2 quarters · filed 2012-11-07 | -$1.00M 10-Q · filed 2012-11-07 | -$667.00M derived: sum of 4 quarters · filed 2013-02-28 | ||||
| 2011-06-30 | -$27.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2012-08-06 | -$38.00M 10-Q · filed 2012-08-06 | -$704.00M derived: sum of 3 quarters · filed 2013-02-28 | -$651.00M derived: sum of 4 quarters · filed 2013-02-28 | ||||
| 2011-03-31 | -$11.00M 10-Q · filed 2012-05-07 | -$677.00M derived: sum of 2 quarters · filed 2013-02-28 | -$624.00M derived: sum of 3 quarters · filed 2013-02-28 | -$630.00M derived: sum of 4 quarters · filed 2013-02-28 | ||||
| 2010-12-31 | -$666.00M derived: 10-K 12 month − 10-Q 9 month · filed 2013-02-28 | -$613.00M derived: sum of 2 quarters · filed 2013-02-28 | -$619.00M derived: sum of 3 quarters · filed 2013-02-28 | -$614.00M 10-K · filed 2013-02-28 | ||||
| 2010-09-30 | $53.00M derived: 10-Q 9 month − 10-Q 6 month · filed 2011-11-07 | $47.00M derived: sum of 2 quarters · filed 2011-11-07 | $52.00M 10-Q · filed 2011-11-07 | $51.79M 10-Q · filed 2010-11-05 | $6.22M derived: sum of 4 quarters · filed 2012-02-24 | |||
| 2010-06-30 | -$6.00M derived: 10-Q 6 month − 10-Q 3 month · filed 2011-08-05 | -$1.00M 10-Q · filed 2011-08-05 | -$1.25M 10-Q · filed 2010-08-06 | -$46.77M derived: sum of 3 quarters · filed 2012-02-24 | $6.94M derived: sum of 4 quarters · filed 2012-02-24 | |||
| 2010-03-31 | $5.00M 10-Q · filed 2011-05-06 | $4.63M 10-Q · filed 2010-05-07 | -$40.77M derived: sum of 2 quarters · filed 2012-02-24 | $12.94M derived: sum of 3 quarters · filed 2012-02-24 | -$5.97M derived: sum of 4 quarters · filed 2012-02-24 | |||
| 2009-12-31 | -$45.77M derived: 10-K 12 month − 10-Q 9 month · filed 2012-02-24 | $7.94M derived: sum of 2 quarters · filed 2012-02-24 | -$10.97M derived: sum of 3 quarters · filed 2012-02-24 | -$3.00M 10-K · filed 2012-02-24 | ||||
| 2009-09-30 | $53.71M derived: 10-Q 9 month − 10-Q 6 month · filed 2010-11-05 | $34.80M derived: sum of 2 quarters · filed 2010-11-05 | $42.77M 10-Q · filed 2010-11-05 | -$12.19M derived: sum of 4 quarters · filed 2011-02-25 | ||||
| 2009-06-30 | -$18.91M derived: 10-Q 6 month − 10-Q 3 month · filed 2010-08-06 | -$10.94M 10-Q · filed 2010-08-06 | -$65.90M derived: sum of 3 quarters · filed 2011-02-25 | -$14.54M derived: sum of 4 quarters · filed 2011-02-25 | ||||
| 2009-03-31 | $7.97M 10-Q · filed 2010-05-07 | -$46.99M derived: sum of 2 quarters · filed 2011-02-25 | $4.38M derived: sum of 3 quarters · filed 2011-02-25 | |||||
| 2008-12-31 | -$54.97M derived: 10-K 12 month − 10-Q 9 month · filed 2011-02-25 | -$3.60M derived: sum of 2 quarters · filed 2011-02-25 | $21.00M 10-K · filed 2011-02-25 | |||||
| 2008-09-30 | $51.37M derived: 10-Q 9 month − 10-Q/A 6 month · filed 2009-11-06 | $75.97M 10-Q · filed 2009-11-06 | ||||||
| 2008-06-30 | $24.60M 10-Q/A · filed 2009-08-27 | |||||||
| 2007-12-31 | $39.00M 10-K · filed 2010-02-25 |
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