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Schedule IV Reinsurance Level 4 (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2016 | Dec. 31, 2015 | Dec. 31, 2014
Life Insurance in Force, Net [Abstract] |  |  |
Life Insurance in Force, Gross | $ 941,583 | $ 914,556 | $ 875,229
Ceded Premiums, Life Insurance in Force | 220,747 | 227,553 | 240,285
Assumed Premiums, Life Insurance in Force | 22,797 | 22,119 | 21,987
Premiums, Net, Life Insurance in Force | $ 743,633 | $ 709,122 | $ 656,931
Life Insurance in Force Premiums, Percentage Assumed to Net | 3.00% | 3.00% | 3.00%
Insurance Services Revenue [Abstract] |  |  |
Direct Premiums Earned | $ 16,553 | $ 16,471 | $ 16,560
Ceded Premiums Earned | 2,234 | 2,293 | 2,419
Assumed From Other Companies | 497 | 507 | 457
Premiums Earned, Net, Life | $ 14,816 | $ 14,685 | $ 14,598
Percentage of Amount Assumed to Net | 3.00% | 3.00% | 3.00%
Property, Liability and Casualty Insurance Product Line [Member] |  |  |
Insurance Services Revenue [Abstract] |  |  |
Direct Premiums Earned | $ 10,871 | $ 10,704 | $ 10,531
Ceded Premiums Earned | 583 | 586 | 699
Assumed From Other Companies | 261 | 298 | 264
Premiums Earned, Net, Property and Casualty | $ 10,549 | $ 10,416 | $ 10,096
Percentage of Amount Assumed to Net | 2.00% | 3.00% | 3.00%
Life and Annuity Insurance Product Line [Member] |  |  |
Insurance Services Revenue [Abstract] |  |  |
Gross Fee Income Earned Premium and Other Life | $ 3,993 | $ 4,099 | $ 4,414
Ceded Premiums Earned | 1,618 | 1,650 | 1,666
Assumed From Other Companies | 181 | 161 | 137
Premiums Earned, Net, Life | $ 2,556 | $ 2,610 | $ 2,885
Percentage of Amount Assumed to Net | 7.00% | 6.00% | 5.00%
Accident and Health Insurance Product Line [Member] |  |  |
Insurance Services Revenue [Abstract] |  |  |
Gross Fee Income Earned Premium and Other Life | $ 1,689 | $ 1,668 | $ 1,615
Ceded Premiums Earned | 33 | 57 | 54
Assumed From Other Companies | 55 | 48 | 56
Premiums Earned, Net, Life | $ 1,711 | $ 1,659 | $ 1,617
Percentage of Amount Assumed to Net | 3.00% | 3.00% | 3.00%

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