|
Fair Value Measurements - Changes in Level 3 Financial Assets (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| Fixed Maturities And Equity Securities [Member] |
|
|
|
|
| Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
|
| Beginning Balance |
$ 857 |
|
$ 1,190 |
|
| Gains (losses) included in shareholders' net income: |
|
|
|
|
| GMIB fair value gain/(loss) |
0 |
|
0 |
|
| Other |
13 |
|
12 |
|
| Total gains (losses) included in shareholders' net income |
13 |
|
12 |
|
| Gains (losses) included in other comprehensive income |
2 |
|
8 |
|
| Gains (losses) required to adjust future policy benefits for settlement annuities |
6 |
[1] |
22 |
[1] |
| Purchases, issuances, settlements: |
|
|
|
|
| Purchases |
11 |
|
24 |
|
| Sales |
(18) |
|
(24) |
|
| Settlements |
(3) |
|
(61) |
|
| Total purchases, sales, settlements |
(10) |
|
(61) |
|
| Transfers into/(out of) Level 3: |
|
|
|
|
| Transfers into Level 3 |
1 |
|
124 |
|
| Transfers out of Level 3 |
(51) |
|
(97) |
|
| Total transfers into/(out of) Level 3 |
(50) |
|
27 |
|
| Ending Balance |
818 |
|
1,198 |
|
| Total gains (losses) included in income attributable to instruments held at the reporting date |
0 |
|
1 |
|
| Derivative Financial Instruments, Assets [Member] | Guaranteed Minimum Income Benefit [Member] |
|
|
|
|
| Fair Value Assets Measured On Recurring Basis Unobservable Input Reconciliation [Line Items] |
|
|
|
|
| Beginning Balance |
953 |
|
751 |
|
| Gains (losses) included in shareholders' net income: |
|
|
|
|
| GMIB fair value gain/(loss) |
27 |
|
77 |
|
| Other |
(1) |
|
(1) |
|
| Total gains (losses) included in shareholders' net income |
26 |
|
76 |
|
| Gains (losses) included in other comprehensive income |
0 |
|
0 |
|
| Gains (losses) required to adjust future policy benefits for settlement annuities |
0 |
[1] |
0 |
[1] |
| Purchases, issuances, settlements: |
|
|
|
|
| Purchases |
0 |
|
0 |
|
| Sales |
0 |
|
0 |
|
| Settlements |
(9) |
|
(12) |
|
| Total purchases, sales, settlements |
(9) |
|
(12) |
|
| Transfers into/(out of) Level 3: |
|
|
|
|
| Transfers into Level 3 |
0 |
|
0 |
|
| Transfers out of Level 3 |
0 |
|
0 |
|
| Total transfers into/(out of) Level 3 |
0 |
|
0 |
|
| Ending Balance |
970 |
|
815 |
|
| Total gains (losses) included in income attributable to instruments held at the reporting date |
$ 26 |
|
$ 76 |
|
|
|
|