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Schedule IV - Reinsurance | 12 Months Ended
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Dec. 31, 2017
Supplemental Schedule of Reinsurance Premiums for Insurance Companies [Abstract] |
Schedule IV — Reinsurance | Schedule IV — Reinsurance
($ in millions) |  | Gross amount |  | Ceded to other companies (1) |  | Assumed from other companies |  | Net amount |  | Percentage of amount assumed to net
Year ended December 31, 2017 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 188,186 |  |  | $ | 86,642 |  |  | $ | 259,671 |  |  | $ | 361,215 |  |  | 71.9 | %
Premiums and contract charges: |  |  |  |  |  |  |  |  |  |
Life insurance |  | $ | 936 |  |  | $ | 276 |  |  | $ | 787 |  |  | $ | 1,447 |  |  | 54.4 | %
Accident and health insurance |  | 958 |  |  | 27 |  |  | — |  |  | 931 |  |  | — | %
Property and casualty insurance |  | 33,221 |  |  | 971 |  |  | 50 |  |  | 32,300 |  |  | 0.2 | %
Total premiums and contract charges |  | $ | 35,115 |  |  | $ | 1,274 |  |  | $ | 837 |  |  | $ | 34,678 |  |  | 2.4 | %
Year ended December 31, 2016 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 167,355 |  |  | $ | 90,011 |  |  | $ | 275,008 |  |  | $ | 352,352 |  |  | 78.0 | %
Premiums and contract charges: |  |  |  |  |  |  |  |  |  |
Life insurance |  | $ | 877 |  |  | $ | 279 |  |  | $ | 818 |  |  | $ | 1,416 |  |  | 57.8 | %
Accident and health insurance |  | 889 |  |  | 30 |  |  | — |  |  | 859 |  |  | — | %
Property and casualty insurance |  | 32,249 |  |  | 987 |  |  | 45 |  |  | 31,307 |  |  | 0.1 | %
Total premiums and contract charges |  | $ | 34,015 |  |  | $ | 1,296 |  |  | $ | 863 |  |  | $ | 33,582 |  |  | 2.6 | %
Year ended December 31, 2015 |  |  |  |  |  |  |  |  |  |
Life insurance in force |  | $ | 156,486 |  |  | $ | 93,326 |  |  | $ | 280,644 |  |  | $ | 343,804 |  |  | 81.6 | %
Premiums and contract charges: |  |  |  |  |  |  |  |  |  |
Life insurance |  | $ | 828 |  |  | $ | 299 |  |  | $ | 849 |  |  | $ | 1,378 |  |  | 61.6 | %
Accident and health insurance |  | 813 |  |  | 33 |  |  | — |  |  | 780 |  |  | — | %
Property and casualty insurance |  | 31,274 |  |  | 1,006 |  |  | 41 |  |  | 30,309 |  |  | 0.1 | %
Total premiums and contract charges |  | $ | 32,915 |  |  | $ | 1,338 |  |  | $ | 890 |  |  | $ | 32,467 |  |  | 2.7 | %
(1) | No reinsurance or coinsurance income was netted against premium ceded in 2017, 2016 or 2015.

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- Definition The entire disclosure for the supplemental schedule of reinsurance information. Reinsurance schedule includes, but is not limited to, the type of insurance, gross amount of premiums, premiums ceded to other entities, premiums assumed from other entities, net amount of premium revenue, and the percentage of the premiums assumed to net premium revenue. + References Reference 1: 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 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 10 -Section S99 -Paragraph 3 -Subparagraph (SX 210.7-05.(c) Schedule IV) -URI http://asc.fasb.org/extlink&oid=6879921&loc=d3e569147-122900 + Details
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