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Derivative Instruments (Change In Our Unrealized Gain On Derivative Instruments In Accumulated OCI) (Details) - USD ($)
$ in Millions

3 Months Ended

Mar. 31, 2019

Mar. 31, 2018

Dec. 31, 2017

Change in our unrealized gain on derivative instruments in accumulated OCI

Balance as of beginning-of-year

$ 407

Income tax expense (benefit)

16

$ 68

Balance as of end-of-period

2,453

Unrealized Gain (Loss) on Derivative Instruments [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Balance as of beginning-of-year

139

(29)

Cumulative effect from adoption of new accounting standard

$ (6)

Change in foreign currency exchange rate adjustment

(14)

(50)

Change in DAC, VOBA, DSI and DFEL

6

4

Income tax benefit (expense)

10

7

Reclassification adjustment for gains (losses) included in net income (loss)

8

3

Associated amortization of DAC, VOBA, DSI and DFEL

(1)

(1)

Income tax expense (benefit)

(1)

Balance as of end-of-period

99

(60)

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest rate contracts [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Unrealized holding gains (losses) arising during the period

(47)

53

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest rate contracts [Member] | Net Investment Income [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Reclassification adjustment for gains (losses) included in net income (loss)

^[1]

1

1

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Interest rate contracts [Member] | Interest and Debt Expense [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Reclassification adjustment for gains (losses) included in net income (loss)

^[2]

(1)

(3)

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign currency contracts [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Unrealized holding gains (losses) arising during the period

11

(37)

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign currency contracts [Member] | Net Investment Income [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Reclassification adjustment for gains (losses) included in net income (loss)

^[1]

7

$ 5

Unrealized Gain (Loss) on Derivative Instruments [Member] | Cash Flow Hedges [Member] | Foreign currency contracts [Member] | Realized Gain (Loss) [Member]

Change in our unrealized gain on derivative instruments in accumulated OCI

Reclassification adjustment for gains (losses) included in net income (loss)

^[3]

$ 1

[1]	The OCI offset is reported within net investment income on our Consolidated Statements of Comprehensive Income (Loss).
[2]	The OCI offset is reported within interest and debt expense on our Consolidated Statements of Comprehensive Income (Loss).
[3]	The OCI offset is reported within realized gain (loss) on our Consolidated Statements of Comprehensive Income (Loss).

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- Definition

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