|
Reinsurance - Effects of Reinsurance (Details) (USD $)
In Millions, unless otherwise specified |
3 Months Ended | |
|---|---|---|
|
Mar. 31, 2015
|
Mar. 31, 2014
|
|
| Premiums Earned, Net [Abstract] | ||
| Ceded | $ 130 | $ 141 |
| Net | 7,402 | 6,676 |
| Reinsurance Recoveries [Abstract] | ||
| Reinsurance recoveries | 159 | 181 |
| Individual Life Insurance And Annuity Business Sold [Member] | ||
| Premiums Earned, Net [Abstract] | ||
| Ceded | 41 | 45 |
| Reinsurance Recoveries [Abstract] | ||
| Reinsurance recoveries | 86 | 99 |
| Other Subsegments [Member] | ||
| Premiums Earned, Net [Abstract] | ||
| Ceded | 89 | 96 |
| Reinsurance Recoveries [Abstract] | ||
| Reinsurance recoveries | $ 73 | $ 82 |