Investment Contracts, Insurance Liabilities and Insurance Annuity Benefits (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Investment Contracts Insurance Liabilities And Insurance Annuity Benefits [Line Items]
Investment contracts	$ 3,144	$ 3,321
Guaranteed investment contracts	1,471	1,644
Total investment contracts	4,615	4,965
Liability for Future Policy Benefits, Life	18,959	20,427
Other Investment Contracts	3,405	3,304
Reinsurance Recoveries	250	234	224
Reinsurance Recoverables Included In Other Receivables	$ 1,685	$ 1,542
Minimum [Member]
Investment Contracts Insurance Liabilities And Insurance Annuity Benefits [Line Items]
Life insurance benefits, net-level-premium method using estimated yields	3.00%	3.00%
Maximum [Member]
Investment Contracts Insurance Liabilities And Insurance Annuity Benefits [Line Items]
Life insurance benefits, net-level-premium method using estimated yields	8.50%	8.50%

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Total liability for investment contracts and guaranteed investment contracts.

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- Definition

The estimated yields of life insurance benefits accounted for mainly by a net-level premium method.

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No definition available.

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- Definition

Other investment contracts, insurance liabilities and insurance annuity benefits not other wise classified

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- Definition

The known and estimated amount recoverable as of the balance sheet date from reinsurers for claims paid or incurred by the ceding insurer and associated claims settlement expenses, including estimated amounts for claims incurred but not reported, and policy benefits, net of any related valuation allowance recorded in other receivables.

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No definition available.

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- Definition

The amount of reinsurance recoveries recognized during the period.

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No definition available.

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- Definition

Carrying amount of liabilities as of the balance sheet date pertaining to amounts received by the insurer or reinsurer from the insured (including a ceding company) under insurance or reinsurance contracts for which insurance risk is not transferred.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 340

-SubTopic 30

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6387650&loc=d3e9420-108338

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- Definition

The amount of the liability as of the balance sheet date pertaining to the guarantee given by the insurance entity to contract holders of a specified rate of return (a guaranteed yield) on their investments for a specified period.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.14)

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13, 14

-Article 7

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- Definition

Amount of accrued obligation to policyholders that relates to insured events under long-term life insurance contracts.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 40

-Section 25

-Paragraph 11

-URI http://asc.fasb.org/extlink&oid=28366191&loc=d3e13145-158430

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph a

-Article 7

Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-03.13(a)(1))

-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

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