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Shareholders' Equity | 9 Months Ended
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Sep. 30, 2024
Equity [Abstract] |
Shareholders' Equity | Shareholders’ Equity Accumulated other comprehensive income (loss) The tables below present the changes in Accumulated other comprehensive income (loss) (“AOCI”) by component for the three and nine months ended September 30, 2023 and 2024:
| Net Unrealized Gains (Losses) on Investments with an Allowance for Credit Losses |  | Net Unrealized Gains (Losses) on Other Investments |  | Cumulative impact of changes in discount rates used to measure long duration contracts |  | Unrealized Gains (Losses) on Cash Flow Hedges |  | Pension and Postretirement Benefits |  | Foreign Currency Translation |  | Total Accumulated Other Comprehensive Income (Loss)
(In millions) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, July 1, 2023 | $ | (16) |  |  | $ | (2,238) |  |  | $ | (163) |  |  | $ | 20 |  |  | $ | (609) |  |  | $ | (154) |  |  | $ | (3,160) |
Other comprehensive income (loss) before reclassifications, after tax of $3, $295, $(217), $(2), $0 and $0 | (9) |  |  | (1,105) |  |  | 818 |  |  | (1) |  |  |  |  | (55) |  |  | (352) |
Reclassification of losses from accumulated other comprehensive loss, after tax of $(2), $(6), $0, $0, $(11) and $0 | 8 |  |  | 21 |  |  |  |  |  |  | 40 |  |  |  |  | 69 |
Other comprehensive income (loss) | (1) |  |  | (1,084) |  |  | 818 |  |  | (1) |  |  | 40 |  |  | (55) |  |  | (283) |
Amounts attributable to noncontrolling interests | 1 |  |  | 95 |  |  | (69) |  |  |  |  | (1) |  |  | 5 |  |  | 31 |
Purchase of CNA shares |  |  | (46) |  |  | (1) |  |  |  |  | (10) |  |  | (4) |  |  | (61) |
Balance, September 30, 2023 | $ | (16) |  |  | $ | (3,273) |  |  | $ | 585 |  |  | $ | 19 |  |  | $ | (580) |  |  | $ | (208) |  |  | $ | (3,473) |
Balance, July 1, 2024 | $ | (10) |  |  | $ | (1,903) |  |  | $ | 234 |  |  | $ | 10 |  |  | $ | (525) |  |  | $ | (189) |  |  | $ | (2,383) |
Other comprehensive income (loss) before reclassifications, after tax of $3, $(337), $165, $3, $0 and $0 | (9) |  |  | 1,253 |  |  | (623) |  |  | (7) |  |  | 1 |  |  | 64 |  |  | 679 |
Reclassification of losses from accumulated other comprehensive loss, after tax of $(2), $(3), $0, $0, $(3) and $0 | 6 |  |  | 11 |  |  |  |  |  |  |  |  | 8 |  |  |  |  |  | 25 |
Other comprehensive income (loss) | (3) |  |  | 1,264 |  |  | (623) |  |  | (7) |  |  | 9 |  |  | 64 |  |  | 704 |
Amounts attributable to noncontrolling interests |  |  |  | (105) |  |  | 52 |  |  |  |  |  | (1) |  |  | (5) |  |  | (59) |
Balance, September 30, 2024 | $ | (13) |  |  | $ | (744) |  |  | $ | (337) |  |  | $ | 3 |  |  | $ | (517) |  |  | $ | (130) |  |  | $ | (1,738) |
| Net Unrealized Gains (Losses) on Investments with an Allowance for Credit Losses |  | Net Unrealized Gains (Losses) on Other Investments |  | Cumulative impact of changes in discount rates used to measure long duration contracts |  | Unrealized Gains (Losses) on Cash Flow Hedges |  | Pension and Postretirement Benefits |  | Foreign Currency Translation |  | Total Accumulated Other Comprehensive Income (Loss)
(In millions) |  |  |  |  |  |  |  |  |  |  |  |  |
Balance, January 1, 2023, as reported | $ | (7) |  |  | $ | (2,469) |  |  | $ | — |  |  | $ | 14 |  |  | $ | (622) |  |  | $ | (200) |  |  | $ | (3,284) |
Cumulative effect adjustments from changes in accounting standard s, after tax of $0, $0, $11, $0, $0 and $0 |  |  |  |  | (36) |  |  |  |  |  |  |  |  | (36) |
Balance, January 1, 2023, as adjusted | (7) |  |  | (2,469) |  |  | (36) |  |  | 14 |  |  | (622) |  |  | (200) |  |  | (3,320) |
Other comprehensive income (loss) before reclassifications, after tax of $7, $235, $(180), $(1), $0 and $0 | (25) |  |  | (880) |  |  | 678 |  |  | 5 |  |  |  |  | (4) |  |  | (226) |
Reclassification of losses from accumulated other comprehensive loss, after tax of $(4), $(14), $0, $0, $(15) and $0 | 15 |  |  | 53 |  |  |  |  |  |  | 55 |  |  |  |  | 123 |
Other comprehensive income (loss) | (10) |  |  | (827) |  |  | 678 |  |  | 5 |  |  | 55 |  |  | (4) |  |  | (103) |
Amounts attributable to noncontrolling interests | 1 |  |  | 69 |  |  | (56) |  |  |  |  | (3) |  |  |  |  | 11 |
Purchase of CNA shares |  |  | (46) |  |  | (1) |  |  |  |  | (10) |  |  | (4) |  |  | (61) |
Balance, September 30, 2023 | $ | (16) |  |  | $ | (3,273) |  |  | $ | 585 |  |  | $ | 19 |  |  | $ | (580) |  |  | $ | (208) |  |  | $ | (3,473) |
Balance, January 1, 2024 | $ | (12) |  |  | $ | (1,483) |  |  | $ | (329) |  |  | $ | 9 |  |  | $ | (533) |  |  | $ | (149) |  |  | $ | (2,497) |
Other comprehensive income (loss) before reclassifications, after tax of $4, $(206), $2, $3, $0 and $0 | (14) |  |  | 764 |  |  | (9) |  |  | (6) |  |  | 1 |  |  | 21 |  |  | 757 |
Reclassification of losses from accumulated other comprehensive loss, after tax of $(4), $(10), $0, $0, $(5) and $0 | 13 |  |  | 39 |  |  |  |  |  |  |  |  | 20 |  |  |  |  |  | 72 |
Other comprehensive income (loss) | (1) |  |  | 803 |  |  | (9) |  |  | (6) |  |  | 21 |  |  | 21 |  |  | 829 |
Amounts attributable to noncontrolling interests |  |  |  | (67) |  |  | 1 |  |  |  |  |  | (2) |  |  | (2) |  |  | (70) |
Other |  |  |  | 3 |  |  |  |  |  |  |  |  | (3) |  |  |  |  |  | — |
Balance, September 30, 2024 | $ | (13) |  |  | $ | (744) |  |  | $ | (337) |  |  | $ | 3 |  |  | $ | (517) |  |  | $ | (130) |  |  | $ | (1,738) |
Amounts reclassified from AOCI shown above are reported in Net income (loss) as follows:
Major Category of AOCI | Affected Line Item
Net unrealized gains (losses) on investments with an allowance for credit losses and Net unrealized gains (losses) on other investments | Investment gains (losses)
Unrealized gains (losses) on cash flow hedges | Operating revenues and other, Interest expense and Operating expenses and other
Pension and postretirement benefits | Operating expenses and other
Stock Purchases Loews Corporation repurchased 3.5 million and 11.9 million shares of its common stock at aggregate costs of $264 million and $711 million during the nine months ended September 30, 2024 and 2023.

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