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Reinsurance (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2017 | Sep. 30, 2016 | Sep. 30, 2017 | Sep. 30, 2016
Property-liability insurance claims and claims expense (1) |  |  |  |
Reductions to costs and expenses due to reinsurance ceded amounts |  |  |  |
Ceded losses incurred | $ 1,268 | $ 493 | $ 1,523 | $ 895
Life and annuity contract benefits |  |  |  |
Reductions to costs and expenses due to reinsurance ceded amounts |  |  |  |
Ceded losses incurred | 47 | 25 | 164 | 172
Interest credited to contractholder funds |  |  |  |
Reductions to costs and expenses due to reinsurance ceded amounts |  |  |  |
Ceded losses incurred | 6 | 7 | 17 | 18
Property-liability insurance premiums earned |  |  |  |
Reductions to premiums and contract charges due to reinsurance premium ceded amounts |  |  |  |
Property-liability insurance premiums earned | 245 | 244 | 745 | 741
Life and annuity premiums and contract charges |  |  |  |
Reductions to premiums and contract charges due to reinsurance premium ceded amounts |  |  |  |
Life and annuity premiums and contract charges | $ 75 | $ 78 | $ 225 | $ 230

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- Definition Represents the amount of premiums and contract charges related to life insurance, accident and health insurance and annuity contracts that are assumed and earned by another insurer as a result of reinsurance arrangements. + References No definition available. + Details
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- Definition Represents the amount of reinsurance ceded under various contracts. + References No definition available. + Details
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- Definition Amount of earned premiums ceded to other entities. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 225 -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-04.1) -URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(2) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=84167274&loc=d3e27175-158546 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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