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v3.20.2

Reinsurance and indemnification (Tables) | 6 Months Ended
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Jun. 30, 2020
Reinsurance Disclosures [Abstract] |
Schedule of reductions to premiums and contract charges due to reinsurance premium ceded amounts |
Effects of reinsurance ceded and indemnification programs on property and casualty premiums earned and life premiums and contract charges
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Property and casualty insurance premiums earned |  | $ | (279 | ) |  | $ | (287 | ) |  | $ | (568 | ) |  | $ | (547 | )
Life premiums and contract charges |  | (67 | ) |  | (69 | ) |  | (111 | ) |  | (132 | )
Schedule of reductions to costs and expenses due to reinsurance ceded amounts |
Effects of reinsurance ceded and indemnification programs on property and casualty insurance claims and claims expense, life contract benefits and interest credited to contractholder funds
($ in millions) |  | Three months ended June 30, |  | Six months ended June 30,
| 2020 |  | 2019 |  | 2020 |  | 2019
Property and casualty insurance claims and claims expense |  | $ | (210 | ) |  | $ | (158 | ) |  | $ | (341 | ) |  | $ | (249 | )
Life contract benefits |  | (45 | ) |  | 5 |  |  | (136 | ) |  | (18 | )
Interest credited to contractholder funds |  | (7 | ) |  | (5 | ) |  | (12 | ) |  | (8 | )
Schedule of reinsurance recoverable for paid and unpaid claims |
Reinsurance and indemnification recoverables, net
($ in millions) |  | June 30, 2020 |  | December 31, 2019
Property and casualty |  |  |  |
Paid and due from reinsurers and indemnitors |  | $ | 86 |  |  | $ | 112 |
Unpaid losses estimated (including IBNR) |  | 7,014 |  |  | 6,912 |
Total property and casualty |  | $ | 7,100 |  |  | $ | 7,024 |
Annuities |  | 1,367 |  |  | 1,305 |
Life insurance |  | 737 |  |  | 794 |
Other |  | 86 |  |  | 88 |
Total |  | $ | 9,290 |  |  | $ | 9,211 |

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- Definition This element may be used as a single block of text to encapsulate entire disclosure, including data and tables for reinsurance claims and benefits ceded. + References No definition available. + Details
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- Definition This element may be used as a single block of text to encapsulate entire disclosure, including data and tables for reinsurance premium ceded. + References No definition available. + Details
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- Definition Schedule of Reinsurance Recoverable for Paid and Unpaid Claims and Claims Adjustments [Table Text Block] + References No definition available. + Details
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Namespace Prefix: | all_
Data Type: | nonnum:textBlockItemType
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- References No definition available. + Details
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Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration