v3.8.0.1

Schedule IV - Reinsurance (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Reinsurance Face Amount/Premiums for Insurance Companies, by Product Segment [Line Items] |  |  |
Gross Amount | $ 3,733,997 | $ 3,652,206 | $ 3,457,711
Ceded to Other Companies | 767,499 | 706,918 | 642,525
Assumed from Other Companies | 207,083 | 218,262 | 235,418
Net Amount | $ 3,173,581 | $ 3,163,550 | $ 3,050,604
Percentage of Amount Assumed to Net | 6.50% | 6.90% | 7.70%
Gross Amount | $ 31,797 | $ 30,654 | $ 27,996
Ceded to Other Companies | 1,811 | 1,763 | 1,622
Assumed from Other Companies | 2,105 | 2,073 | 2,147
Premiums | $ 32,091 | $ 30,964 | $ 28,521
Percentage of Amount Assumed to Net | 6.60% | 6.70% | 7.50%
Life Insurance |  |  |
Reinsurance Face Amount/Premiums for Insurance Companies, by Product Segment [Line Items] |  |  |
Gross Amount | $ 29,035 | $ 27,857 | $ 25,346
Ceded to Other Companies | 1,761 | 1,719 | 1,573
Assumed from Other Companies | 2,105 | 2,073 | 2,147
Premiums | $ 29,379 | $ 28,211 | $ 25,920
Percentage of Amount Assumed to Net | 7.20% | 7.30% | 8.30%
Accident and Health Insurance |  |  |
Reinsurance Face Amount/Premiums for Insurance Companies, by Product Segment [Line Items] |  |  |
Gross Amount | $ 2,762 | $ 2,797 | $ 2,650
Ceded to Other Companies | 50 | 44 | 49
Assumed from Other Companies | 0 | 0 | 0
Premiums | $ 2,712 | $ 2,753 | $ 2,601
Percentage of Amount Assumed to Net | 0.00% | 0.00% | 0.00%

X
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- Definition Amount, before premiums ceded to other entities and premiums assumed by the entity, of premiums earned. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 944 -SubTopic 605 -Section 50 -Paragraph 1 -Subparagraph (b),(c)(1) -URI http://asc.fasb.org/extlink&oid=6486672&loc=d3e27261-158547 Reference 2: 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 3: 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 + Details
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- Definition Amount of life insurance issued and outstanding assumed from other entities. Includes, but not limited to, dividends and adjustments to face value. + 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 + Details
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- Definition Amount of life insurance issued and outstanding ceded to other entities. Includes, but not limited to, dividends and adjustments to face value. + 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 + Details
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- Definition Amount before contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value. + 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 + Details
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- Definition Amount after contracts ceded to other entities and contracts assumed by the entity of life insurance issued and outstanding. Includes, but not limited to, dividends and adjustments to face value. + 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 + Details
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- Definition Percentage of assumed life insurance issued and outstanding contracts to life insurance issued and outstanding after contracts ceded to other entities and contracts assumed by the entity. Includes, but not limited to, dividends and adjustments to face value. + 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 + Details
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