Fair Value (Details 10) (USD $) In Millions, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	$ 56,592	$ 56,915
Held-for-sale	49	10,716
Policy loans	11,884	11,892
Other Limited Partnership Interests	6,688	6,378
Other Investments	21,145	23,581
Liabilities
Policyholder account balances	225,821	217,700	210,757
Bank deposits	6,416	10,507
Collateral financing arrangements	4,196	4,647
Junior subordinated debt securities	3,192	3,192
Other Liabilities	22,492	30,914
Separate account liabilities	235,393	203,023
Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	3,000	4,100
Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	1,200	1,400
Estimate of Fair Value, Fair Value Disclosure [Member]
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	57,381	56,422
Held-for-sale	365	4,462
Mortgage loans, net	57,746	60,884
Policy loans	14,257	14,213
Real estate joint ventures	171	183
Other Limited Partnership Interests	1,277	1,656
Other Investments	815	1,434
Premiums, reinsurance and other receivables	3,705	5,232
Other assets	292	308
Liabilities
Policyholder account balances	158,040	153,304
Bank deposits	6,416	10,507
Long-term Debt	18,978	22,514
Collateral financing arrangements	3,839	4,136
Junior subordinated debt securities	3,984	3,491
Other Liabilities	1,916	4,087
Separate account liabilities	58,726	49,610
Estimate of Fair Value, Fair Value Disclosure [Member] \| Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	12	3
Estimate of Fair Value, Fair Value Disclosure [Member] \| Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	22	51
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 1 [Member]
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0
Held-for-sale	0
Mortgage loans, net	0
Policy loans	0
Real estate joint ventures	0
Other Limited Partnership Interests	0
Other Investments	305
Premiums, reinsurance and other receivables	0
Other assets	0
Liabilities
Policyholder account balances	0
Bank deposits	0
Long-term Debt	0
Collateral financing arrangements	0
Junior subordinated debt securities	0
Other Liabilities	0
Separate account liabilities	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 1 [Member] \| Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 1 [Member] \| Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 2 [Member]
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	0
Held-for-sale	0
Mortgage loans, net	0
Policy loans	1,690
Real estate joint ventures	0
Other Limited Partnership Interests	0
Other Investments	144
Premiums, reinsurance and other receivables	745
Other assets	214
Liabilities
Policyholder account balances	0
Bank deposits	2,018
Long-term Debt	18,978
Collateral financing arrangements	0
Junior subordinated debt securities	3,984
Other Liabilities	673
Separate account liabilities	58,726
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 2 [Member] \| Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 2 [Member] \| Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	22
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 3 [Member]
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	57,381
Held-for-sale	365
Mortgage loans, net	57,746
Policy loans	12,567
Real estate joint ventures	171
Other Limited Partnership Interests	1,277
Other Investments	366
Premiums, reinsurance and other receivables	2,960
Other assets	78
Liabilities
Policyholder account balances	158,040
Bank deposits	4,398
Long-term Debt	0
Collateral financing arrangements	3,839
Junior subordinated debt securities	0
Other Liabilities	1,243
Separate account liabilities	0
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 3 [Member] \| Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	12
Estimate of Fair Value, Fair Value Disclosure [Member] \| Level 3 [Member] \| Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	0
Carrying Value [Member]
Mortgage loans [Abstract]
Mortgage Loans on Real Estate, Commercial and Consumer, Net	53,926	53,777
Held-for-sale	365	4,462
Mortgage loans, net	54,291	58,239
Policy loans	11,884	11,892
Real estate joint ventures	113	130
Other Limited Partnership Interests	1,154	1,318
Other Investments	815	1,434
Premiums, reinsurance and other receivables	3,287	4,639
Other assets	260	310
Liabilities
Policyholder account balances	149,928	146,890
Bank deposits	6,416	10,507
Long-term Debt	16,502	20,587
Collateral financing arrangements	4,196	4,647
Junior subordinated debt securities	3,192	3,192
Other Liabilities	1,913	4,087
Separate account liabilities	58,726	49,610
Carrying Value [Member] \| Mortgage Loan Commitments [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	0	0
Carrying Value [Member] \| Commitments to Extend Credit [Member]
Commitments [Abstract]
Commitments to fund bank credit facilities, bridge loans and private corporate bond investments	$ 0	$ 0

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The aggregate of all deposit liabilities held by the entity, including foreign and domestic, interest and noninterest bearing; may include demand deposits, saving deposits, Negotiable Order of Withdrawal (NOW) and time deposits among others.

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Other investments not otherwise specified in the taxonomy.

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef

-Publisher AICPA

-Name Statement of Position (SOP)

-Number 03-1

-Paragraph 19-23, 38

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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