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Accumulated Other Comprehensive Income Loss - Reclassifications from AOCI (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2019 | Jun. 30, 2018 | Jun. 30, 2019 | Jun. 30, 2018
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net realized capital gains | $ 80 | $ 52 | $ 245 | $ 22
Income from continuing operations, before tax | 456 | 537 | 1,231 | 1,056
Income tax expense | 84 | 103 | 229 | 194
Income from discontinued operations, net of tax | 0 | 148 | 0 | 317
Net Investment Income | 488 | 428 | 958 | 879
Interest Expense | 63 | 79 | 127 | 159
Net income | 372 | 582 | 1,002 | 1,179
Insurance operating costs and other expenses | 1,141 | 1,067 | 2,189 | 2,104
Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax | 32 | (13) | 42 | (37)
Net Unrealized Gain on Securities | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net realized capital gains | 50 | (6) | 71 | (44)
Income from continuing operations, before tax | 50 | (6) | 71 | (44)
Income tax expense | 11 | (1) | 15 | (9)
Income from discontinued operations, net of tax |  | (5) |  | (2)
Net income | 39 | (10) | 56 | (37)
Accumulated Other-than-Temporary Impairment Attributable to Parent [Member] | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net realized capital gains |  | 0 |  | 0
Income from continuing operations, before tax |  | 0 |  | 0
Income tax expense |  | 0 |  | 0
Income from discontinued operations, net of tax |  | 1 |  | 1
Net income |  | 1 |  | 1
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Income from continuing operations, before tax | 3 | 9 | 4 | 18
Income tax expense | 1 | 2 | 1 | 4
Income from discontinued operations, net of tax |  | (1) |  | 5
Net income | 2 | 6 | 3 | 19
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Reclassification out of Accumulated Other Comprehensive Income | Currency Swap [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net Investment Income | 0 |  | 1 |
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Parent | Reclassification out of Accumulated Other Comprehensive Income | Interest rate swaps |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Net realized capital gains | 2 | 0 | 2 | 1
Net Investment Income | 0 | 9 | 0 | 17
Interest Expense | 1 |  | 1 |
Amortization of prior service credit | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Insurance operating costs and other expenses | 2 | 2 | 3 | 3
Amortization of actuarial loss | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Insurance operating costs and other expenses | (13) | (15) | (25) | (28)
Pension and Other Postretirement Plan Adjustments | Reclassification out of Accumulated Other Comprehensive Income |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Income from continuing operations, before tax | (11) | (13) | (22) | (25)
Income tax expense | (2) | (3) | (5) | (5)
Net income | $ (9) | $ (10) | $ (17) | $ (20)

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- Definition This item represents the net total realized and unrealized gain (loss) included in earnings for the period as a result of selling or holding marketable securities categorized as trading, available-for-sale, or held-to-maturity, including the unrealized holding gain (loss) of held-to-maturity securities transferred to the trading security category and the cumulative unrealized gain (loss) which was included in other comprehensive income (a separate component of shareholders' equity) for available-for-sale securities transferred to trading securities during the period. Additionally, this item would include any gains (losses) realized during the period from the sale of investments accounted for under the cost method of accounting. + References Reference 1: http://fasb.org/us-gaap/role/ref/otherTransitionRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3602-108585 + Details
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