Reinsurance (Components of Life Insurance Inforce) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Reinsurance Disclosures [Abstract]
Life Insurance Inforce, Direct	$ 5,127	$ 5,713	$ 6,528
Life Insurance Inforce, Assumed
Life Insurance Inforce, Ceded	5,118	5,702	6,515
Life Insurance Inforce, Net	$ 9	$ 11	$ 13

Amount of life insurance in force premiums assumed from other entities.

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 17

-Article 12

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 235

-Section S99

-Paragraph 2

-Subparagraph (SX 210.12-17)

-URI http://asc.fasb.org/extlink&oid=6588446&loc=d3e574992-122915

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Amount of life insurance in force premiums ceded to other entities.

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- Definition

Amount, before premiums ceded to other entities and premiums assumed by the entity, of life insurance in force premiums.

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Amount, after premiums ceded to other entities and premiums assumed by the entity, of life insurance in force premiums.

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