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CONSOLIDATED CONDENSED STATEMENTS OF OPERATIONS (Unaudited) - USD ($) shares in Thousands, $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2020 | Mar. 31, 2019
Revenues: |  |  |
Insurance premiums |  | $ 1,869 | $ 1,803
Net investment income |  | 163 | 657
Investment gains (losses) | [1] | (216) | 31
Non-insurance warranty revenue |  | 301 | 281
Operating revenues and other |  | 982 | 985
Total |  | 3,099 | 3,757
Expenses: |  |  |
Insurance claims and policyholders' benefits |  | 1,425 | 1,357
Amortization of deferred acquisition costs |  | 344 | 342
Non-insurance warranty expense |  | 281 | 260
Operating expenses and other |  | 2,026 | 1,149
Interest |  | 144 | 141
Total |  | 4,220 | 3,249
Income (loss) before income tax |  | (1,121) | 508
Income tax (expense) benefit |  | 77 | (112)
Net income (loss) |  | (1,044) | 396
Amounts attributable to noncontrolling interests |  | 412 | (2)
Net income (loss) attributable to Loews Corporation |  | $ (632) | $ 394
Basic and diluted net income (loss) per share (in dollars per share) |  | $ (2.20) | $ 1.27
Weighted average shares outstanding: |  |  |
Shares of common stock (in shares) |  | 287,040 | 309,830
Dilutive potential shares of common stock (in shares) |  |  | 530
Total weighted average shares outstanding assuming dilution (in shares) |  | 287,040 | 310,360
[1] | Gross investment gains on available-for-sale securities were $29 and $36 for the three months ended March 31, 2020 and 2019. Gross investment losses on available-for-sale securities were $104 and $42 for the three months ended March 31, 2020 and 2019. During the three months ended March 31, 2020 and 2019, $133 of net investment losses and $42 of net investment gains were recognized due to the change in fair value of non-redeemable preferred stock still held as of March 31, 2020 and 2019.

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Name: | us-gaap_WeightedAverageNumberOfSharesOutstandingBasic
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration