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Schedule IV - Reinsurance (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Life insurance in force |  |  |
Gross amount | $ 207,434 | $ 188,186 | $ 167,355
Ceded to other companies | 81,186 | 86,642 | 90,011
Assumed from other companies | 243,161 | 259,671 | 275,008
Net amount | $ 369,409 | $ 361,215 | $ 352,352
Percentage of amount assumed to net | 65.80% | 71.90% | 78.00%
Premiums and contract charges: |  |  |
Gross amount | $ 36,978 | $ 35,115 | $ 34,015
Ceded premium earned | 1,306 | 1,274 | 1,296
Assumed from other companies | 841 | 837 | 863
Net amount | $ 36,513 | $ 34,678 | $ 33,582
Percentage of amount assumed to net | 2.30% | 2.40% | 2.60%
Reinsurance or coinsurance income net of premium ceded | $ 0 | $ 0 | $ 0
Life insurance |  |  |
Premiums and contract charges: |  |  |
Gross amount | 994 | 936 | 877
Ceded premium earned | 266 | 276 | 279
Assumed from other companies | 754 | 787 | 818
Net amount | $ 1,482 | $ 1,447 | $ 1,416
Percentage of amount assumed to net | 50.90% | 54.40% | 57.80%
Accident and health insurance |  |  |
Premiums and contract charges: |  |  |
Gross amount | $ 1,007 | $ 958 | $ 889
Ceded premium earned | 24 | 27 | 30
Assumed from other companies | 0 | 0 | 0
Net amount | $ 983 | $ 931 | $ 859
Percentage of amount assumed to net | 0.00% | 0.00% | 0.00%
Property and casualty insurance |  |  |
Premiums and contract charges: |  |  |
Gross amount | $ 34,977 | $ 33,221 | $ 32,249
Ceded premium earned | 1,016 | 971 | 987
Assumed from other companies | 87 | 50 | 45
Net amount | $ 34,048 | $ 32,300 | $ 31,307
Percentage of amount assumed to net | 0.30% | 0.20% | 0.10%

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- Definition Amount of life insurance issued and outstanding assumed from other entity, as disclosed in supplementary reinsurance information. Includes, but is not limited to, dividend and adjustment to face value. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 12 -Paragraph Column D -Subsection 17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 235 -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-17(Column D)) -URI http://asc.fasb.org/extlink&oid=34713774&loc=d3e574992-122915 + Details
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