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Reinsurance | 9 Months Ended
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Sep. 30, 2017
Reinsurance Disclosures [Abstract] |
Reinsurance | Reinsurance Property-liability insurance premiums earned and life and annuity premiums and contract charges have been reduced by reinsurance ceded amounts shown in the following table.
($ in millions) | Three months ended September 30, |  | Nine months ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Property-liability insurance premiums earned | $ | 245 |  |  | $ | 244 |  |  | $ | 745 |  |  | $ | 741 |
Life and annuity premiums and contract charges | 75 |  |  | 78 |  |  | 225 |  |  | 230
Property-liability insurance claims and claims expense, life and annuity contract benefits and interest credited to contractholder funds have been reduced by the reinsurance ceded amounts shown in the following table.
($ in millions) | Three months ended September 30, |  | Nine months ended September 30,
| 2017 |  | 2016 |  | 2017 |  | 2016
Property-liability insurance claims and claims expense (1) | $ | 1,268 |  |  | $ | 493 |  |  | $ | 1,523 |  |  | $ | 895 |
Life and annuity contract benefits | 47 |  |  | 25 |  |  | 164 |  |  | 172
Interest credited to contractholder funds | 6 |  |  | 7 |  |  | 17 |  |  | 18
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(1) | Includes expected reinsurance recoveries on catastrophe losses related to homeowners flood claims covered by the National Flood Insurance Program.

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- Definition The entire disclosure pertaining to the existence, magnitude and information about insurance that has been ceded to or assumed from another insurance company, including the methodologies and assumptions used in determining recorded amounts. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -URI http://asc.fasb.org/topic&trid=2303980 + Details
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