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AOCI Rollforward (Details 2) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2020 | Jun. 30, 2019 | Jun. 30, 2020 | Jun. 30, 2019
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | $ (295) | $ 35 | $ 262 | $ (291)
OCI before reclassifications |  | 692 | 234 | 129 | 565
Amounts reclassified from AOCI |  | (3) | 0 | 3 | (5)
Total other comprehensive income (loss), net of tax |  | 689 | 234 | 132 | 560
Ending balance |  | 394 | 269 | 394 | 269
Accumulated Other Comprehensive Income (Loss) Available For Sale Securities Impairment Other than Credit |  |  | 1 |  | 1
Net unrealized gains (losses) on securities [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | 52 | 342 | 576 | 20
OCI before reclassifications |  | 700 | 248 | 170 | 574
Amounts reclassified from AOCI |  | (3) | 0 | 3 | (4)
Total other comprehensive income (loss), net of tax |  | 697 | 248 | 173 | 570
Ending balance | [1] | 749 | 590 | 749 | 590
Net unrealized gains (losses) on derivatives [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | 6 | 7 | 6 | 8
OCI before reclassifications |  | 0 | 0 | 0 | 0
Amounts reclassified from AOCI |  | 0 | 0 | 0 | (1)
Total other comprehensive income (loss), net of tax |  | 0 | 0 | 0 | (1)
Ending balance |  | 6 | 7 | 6 | 7
Defined benefit plans [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | (138) | (120) | (138) | (120)
OCI before reclassifications |  | 0 | 0 | 0 | 0
Amounts reclassified from AOCI |  | 0 | 0 | 0 | 0
Total other comprehensive income (loss), net of tax |  | 0 | 0 | 0 | 0
Ending balance |  | (138) | (120) | (138) | (120)
Foreign currency translation [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | (214) | (193) | (181) | (198)
OCI before reclassifications |  | (8) | (14) | (41) | (9)
Amounts reclassified from AOCI |  | 0 | 0 | 0 | 0
Total other comprehensive income (loss), net of tax |  | (8) | (14) | (41) | (9)
Ending balance |  | (222) | (207) | (222) | (207)
Other [Member] |  |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |  |
Beginning balance |  | (1) | (1) | (1) | (1)
OCI before reclassifications |  | 0 | 0 | 0 | 0
Amounts reclassified from AOCI |  | 0 | 0 | 0 | 0
Total other comprehensive income (loss), net of tax |  | 0 | 0 | 0 | 0
Ending balance |  | $ (1) | $ (1) | $ (1) | $ (1)
[1] | Includes nil and $(1) million of noncredit related impairments on securities and net unrealized gains (losses) on previously impaired securities as of June 30, 2020 and June 30, 2019, respectively.

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- Definition The amount included in accumulated other comprehensive income related to net unrealized gain (loss) on available for sale securities as of the balance sheet date that is attributable to noncredit related impairments on securities and net unrealized securities losses on previously impaired securities. + References No definition available. + Details
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