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v3.21.1

Segments (Details) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2021 USD ($) Segment Subsidiaries | Mar. 31, 2020 USD ($)
Segments [Abstract] |  |  |
Number of reportable segments | Segment |  | 4 |
Number of individual operating subsidiaries | Subsidiaries |  | 3 |
Revenues [Abstract] |  |  |
Insurance premiums |  | $ 1,962 | $ 1,869
Net investment income (loss) |  | 550 | 163
Investment gains (losses) | [1] | 57 | (216)
Non-insurance warranty revenue |  | 338 | 301
Operating revenues and other |  | 715 | 982
Total |  | 3,622 | 3,099
Expenses [Abstract] |  |  |
Insurance claims and policyholders' benefits |  | 1,506 | 1,425
Amortization of deferred acquisition costs |  | 359 | 344
Non-insurance warranty expense |  | 311 | 281
Operating expenses and other |  | 914 | 2,026
Interest |  | 125 | 144
Total |  | 3,215 | 4,220
Income (loss) before income tax |  | 407 | (1,121)
Income tax (expense) benefit |  | (114) | 77
Net income (loss) |  | 293 | (1,044)
Amounts attributable to noncontrolling interests |  | (32) | 412
Net income (loss) attributable to Loews Corporation |  | 261 | (632)
Operating Segments [Member] |  |  |
Revenues [Abstract] |  |  |
Insurance premiums |  | 1,962 | 1,869
Net investment income (loss) |  | 550 | 163
Investment gains (losses) |  | 57 | (216)
Non-insurance warranty revenue |  | 338 | 301
Operating revenues and other |  | 715 | 982
Total |  | 3,622 | 3,099
Expenses [Abstract] |  |  |
Insurance claims and policyholders' benefits |  | 1,506 | 1,425
Amortization of deferred acquisition costs |  | 359 | 344
Non-insurance warranty expense |  | 311 | 281
Operating expenses and other |  | 914 | 2,026
Interest |  | 125 | 144
Total |  | 3,215 | 4,220
Income (loss) before income tax |  | 407 | (1,121)
Income tax (expense) benefit |  | (114) | 77
Net income (loss) |  | 293 | (1,044)
Amounts attributable to noncontrolling interests |  | (32) | 412
Net income (loss) attributable to Loews Corporation |  | 261 | (632)
Operating Segments [Member] | CNA Financial [Member] |  |  |
Revenues [Abstract] |  |  |
Insurance premiums |  | 1,962 | 1,869
Net investment income (loss) |  | 504 | 329
Investment gains (losses) |  | 57 | (216)
Non-insurance warranty revenue |  | 338 | 301
Operating revenues and other |  | 5 | 8
Total |  | 2,866 | 2,291
Expenses [Abstract] |  |  |
Insurance claims and policyholders' benefits |  | 1,506 | 1,425
Amortization of deferred acquisition costs |  | 359 | 344
Non-insurance warranty expense |  | 311 | 281
Operating expenses and other |  | 285 | 300
Interest |  | 28 | 31
Total |  | 2,489 | 2,381
Income (loss) before income tax |  | 377 | (90)
Income tax (expense) benefit |  | (66) | 28
Net income (loss) |  | 311 | (62)
Amounts attributable to noncontrolling interests |  | (32) | 7
Net income (loss) attributable to Loews Corporation |  | 279 | (55)
Operating Segments [Member] | Boardwalk Pipelines [Member] |  |  |
Revenues [Abstract] |  |  |
Operating revenues and other |  | 372 | 341
Total |  | 372 | 341
Expenses [Abstract] |  |  |
Operating expenses and other |  | 217 | 211
Interest |  | 41 | 42
Total |  | 258 | 253
Income (loss) before income tax |  | 114 | 88
Income tax (expense) benefit |  | (29) | (23)
Net income (loss) |  | 85 | 65
Net income (loss) attributable to Loews Corporation |  | 85 | 65
Operating Segments [Member] | Loews Hotels & Co [Member] |  |  |
Revenues [Abstract] |  |  |
Operating revenues and other |  | 57 | 142
Total |  | 57 | 142
Expenses [Abstract] |  |  |
Operating expenses and other |  | 104 | 167
Interest |  | 8 | 8
Total |  | 112 | 175
Income (loss) before income tax |  | (55) | (33)
Income tax (expense) benefit |  | 12 | 8
Net income (loss) |  | (43) | (25)
Net income (loss) attributable to Loews Corporation |  | (43) | (25)
Operating Segments [Member] | Corporate [Member] |  |  |
Revenues [Abstract] |  |  |
Net investment income (loss) |  | 46 | (166)
Operating revenues and other |  | 281 | 257
Total |  | 327 | 91
Expenses [Abstract] |  |  |
Operating expenses and other |  | 308 | 268
Interest |  | 48 | 31
Total |  | 356 | 299
Income (loss) before income tax |  | (29) | (208)
Income tax (expense) benefit |  | (31) | 43
Net income (loss) |  | (60) | (165)
Net income (loss) attributable to Loews Corporation |  | $ (60) | (165)
Operating Segments [Member] | Diamond Offshore [Member] |  |  |
Revenues [Abstract] |  |  |
Operating revenues and other |  |  | 234
Total |  |  | 234
Expenses [Abstract] |  |  |
Operating expenses and other |  |  | 1,080
Interest |  |  | 32
Total |  |  | 1,112
Income (loss) before income tax |  |  | (878)
Income tax (expense) benefit |  |  | 21
Net income (loss) |  |  | (857)
Amounts attributable to noncontrolling interests |  |  | 405
Net income (loss) attributable to Loews Corporation |  |  | $ (452)
[1] | Gross investment gains on available-for-sale securities were $58 and $29 for the three months ended March 31, 2021 and 2020. Gross investment losses on available-for-sale securities were $20 and $104 for the three months ended March 31, 2021 and 2020. During the three months ended March 31, 2021 and 2020, $2 of investment gains and $133 of investment losses were recognized due to the change in fair value of non-redeemable preferred stock still held as of March 31, 2021 and 2020.

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