Commercial Paper, Outstanding

No definition available.

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- Definition

Adjustment to long-term debt as listed in the schedule of debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

No definition available.

+ Details

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- Definition

Line of credit facility maximum borrowing capacity available to support letters of credit.

+ References

No definition available.

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- Definition

Line of Credit, Term of Credit Facility

+ References

No definition available.

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- Definition

Maximum aggregate principal amount of junior subordinated notes.

+ References

No definition available.

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- Definition

Net worth after tax effect.

+ References

No definition available.

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- Definition

Ratio of debt of subsidiaries to net capital.

+ References

No definition available.

+ Details

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- Definition

Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

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-Subparagraph (SX 210.5-02.19(a)(3))

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- Definition

Amount of outstanding long-term debt or borrowing associated with any securities or credit agreement for which there has been a default in principal, interest, sinking fund, or redemption provisions, or any breach of covenant that existed at the end of the period and subsequently has not been cured.

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-Subparagraph (SX 210.4-08.(c))

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

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- Definition

Face (par) amount of debt instrument at time of issuance.

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- Definition

Effective interest rate for the funds borrowed under the debt agreement considering interest compounding and original issue discount or premium.

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Contractual interest rate for funds borrowed, under the debt agreement.

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-Subparagraph (SX 210.5-02.22(a)(1))

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- Definition

Face (par) amount of the original debt instrument that was repurchased.

+ References

No definition available.

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- Definition

Represents the aggregate of total long-term debt, including current maturities and short-term debt.

+ References

No definition available.

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- Definition

Gross amount of debt extinguished.

+ References

No definition available.

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- Definition

Fair value of financial instrument held by the entity for its own account (proprietary securities) for trading or investment purposes that are carried at fair value and pledged to counterparties as collateral for financing transactions where counterparty has the right to re-pledge such.

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- Definition

Difference between the fair value of payments made and the carrying amount of debt which is extinguished prior to maturity.

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- Definition

Including the current and noncurrent portions, carrying value as of the balance sheet date of long-term debt (with maturities initially due after one year or beyond the operating cycle if longer) identified as Junior Subordinated Notes, which have a lower priority than senior instruments.

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-Topic 942

-SubTopic 210

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-Subparagraph (SX 210.9-03.16)

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-Topic 944

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-Number 210

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-Section S99

-Paragraph 1

-Subparagraph (SX210.5-02.22)

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.19(b),22(b))

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-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 19, 22

-Article 5

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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-Paragraph 1

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-Topic 235

-SubTopic 10

-Section S99

-Paragraph 3

-Subparagraph (SX 210.12-04.(a))

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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- Definition

Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Amount of long-term debt payable, sinking fund requirements, and other securities issued that are redeemable by holder at fixed or determinable prices and dates maturing in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Carrying amount of long-term debt, net of unamortized discount or premium, excluding amounts to be repaid within one year or the normal operating cycle, if longer (current maturities). Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

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-Subparagraph (SX 210.5-02.22)

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-Section 02

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The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

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Including the current and noncurrent portions, aggregate carrying amount of all types of notes payable, as of the balance sheet date, with initial maturities beyond one year or beyond the normal operating cycle, if longer.

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The cash inflow from a borrowing supported by a written promise to pay an obligation.

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-Glossary Financing Activities

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Indebtedness divided by net capital.

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No definition available.

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Including the current and noncurrent portions, carrying value as of the balance sheet date of Notes with the highest claim on the assets of the issuer in case of bankruptcy or liquidation (with maturities initially due after one year or beyond the operating cycle if longer). Senior note holders are paid off in full before any payments are made to junior note holders.

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Terms and conditions of borrowings under subordinated debt agreements that qualify as available in computing net capital under SEC's uniform net capital rule, including restrictive covenants, collateral, and disclosure of the amount for which six months' notice has been given of intent to withdraw.

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Debt Level 4 (Details) (USD $)	3 Months Ended		6 Months Ended	12 Months Ended
Debt Level 4 (Details) (USD $)	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Sep. 30, 2014	Mar. 31, 2013
Short-term Debt [Abstract]
Long-term Line of Credit				$ 0us-gaap_LineOfCredit	$ 238,000,000us-gaap_LineOfCredit
Senior Notes	300,000,000us-gaap_SeniorNotes
Junior Subordinated Notes		2,125,000,000us-gaap_JuniorSubordinatedNotes	2,125,000,000us-gaap_JuniorSubordinatedNotes
Notes Payable				6,109,000,000us-gaap_NotesPayable	6,306,000,000us-gaap_NotesPayable
Long-term Debt, Excluding Current Maturities				5,653,000,000us-gaap_LongTermDebtNoncurrent	6,106,000,000us-gaap_LongTermDebtNoncurrent
Current maturity adjustment to long-term debt				(456,000,000)	(200,000,000)
Debt, Long-term and Short-term, Combined Amount				6,109,000,000	6,544,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		5.596%	5.596%
Financial Instruments Owned and Pledged as Collateral, Amount Eligible to be Repledged by Counterparty				1,390,000,000
Debt Instrument, Repurchased Face Amount								800,000,000
Extinguishment of Debt, Amount					213,000,000us-gaap_ExtinguishmentOfDebtAmount
Long-term Debt, Percentage Bearing Fixed Interest, Percentage Rate	4.30%
Proceeds from Notes Payable	295us-gaap_ProceedsFromNotesPayable
Maximum Aggregate Principal Amount of Junior Subordinated Notes				500,000,000
Gains (Losses) on Extinguishment of Debt		587,000,000		0	(213,000,000)	(910,000,000)
Debt Instrument, Face Amount		600,000,000us-gaap_DebtInstrumentFaceAmount	600,000,000us-gaap_DebtInstrumentFaceAmount
Debt Instrument, Basis Spread on Variable Rate			0.70%
Line of Credit Facility [Abstract]
Commercial Paper				1,000,000,000us-gaap_CommercialPaper			2,000,000,000us-gaap_CommercialPaper
Medium-term Notes [Abstract]
Debt Instrument, Debt Default, Amount		25,000,000us-gaap_DebtDefaultLongtermDebtAmount	25,000,000us-gaap_DebtDefaultLongtermDebtAmount
Subordinated Borrowing Terms and Conditions			$586,
Maturities of Long-term Debt [Abstract]
Long-term Debt, Maturities, Repayments of Principal in Next Twelve Months				456,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Two				275,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Three				712,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Four				320,000,000
Long-term Debt, Maturities, Repayments of Principal in Year Five				413,000,000
Long-term Debt, Maturities, Repayments of Principal after Year Five				4,025,000,000
Commercial Paper, Outstanding				0hig_CommercialPaperOutstanding
Junior Subordinated Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Maximum Aggregate Principal Amount of Junior Subordinated Notes		1,750,000,000	1,750,000,000
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Ratio of Debt of Subsidiaries to Net Capital				10.00%
Line of Credit Facility, Maximum Borrowing Capacity				1,750,000,000
Line Of Credit Facility Maximum Borrowing Capacity Available Support Letters Of Credit				0
Net Worth After Tax Effect				13,500,000,000
Five Year Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity				1,000,000,000
Revolving Credit Facility [Member] \| Four Year Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Line of Credit, Term of Credit Facility				4 years
Revolving Credit Facility [Member] \| Five Year Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Line of Credit, Term of Credit Facility				5 years
Senior Note Four Point Seven Five Percent Due in Two Thousand Fourteen [Member]
Short-term Debt [Abstract]
Senior Notes				0
Senior Note Four Point Zero Percent Due in Two Thousand Fifteen [Member]
Short-term Debt [Abstract]
Senior Notes				289,000,000
Senior Note 4.75% Due 2014 [Member]
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				4.75%
Senior Note 4.0% Due 2015 [Member]
Short-term Debt [Abstract]
Senior Notes					289,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				4.00%
Senior Note 7.3% Due 2015 [Member]
Short-term Debt [Abstract]
Senior Notes				167,000,000	167,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				7.30%
Senior Note 5.5% Due 2016 [Member]
Short-term Debt [Abstract]
Senior Notes				275,000,000	275,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				5.50%
Senior Note 5.375% Due 2017 [Member]
Short-term Debt [Abstract]
Senior Notes				415,000,000	415,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				5.375%
Senior Note 4.0% Due 2017 [Member]
Short-term Debt [Abstract]
Senior Notes				295,000,000	295,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				4.00%
Senior Note 6.3% Due 2018 [Member]
Short-term Debt [Abstract]
Senior Notes				320,000,000	320,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				6.30%
Senior Note 6.0% Due 2019 [Member]
Short-term Debt [Abstract]
Senior Notes				413,000,000	413,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				6.00%
Senior Note 5.5% Due 2020 [Member]
Short-term Debt [Abstract]
Senior Notes				499,000,000	499,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				5.50%
Senior Note 5.125% Due 2022 [Member]
Short-term Debt [Abstract]
Senior Notes				797,000,000	796,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				5.125%
Senior Note 7.65% Due 2027 [Member]
Short-term Debt [Abstract]
Senior Notes				80,000,000	79,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				7.65%
Senior Note 7.375% Due 2031 [Member]
Short-term Debt [Abstract]
Senior Notes				63,000,000	63,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				7.375%
Senior Note 5.95% Due 2036 [Member]
Short-term Debt [Abstract]
Senior Notes				299,000,000	298,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				5.95%
Senior Note 6.625% Due 2040 [Member]
Short-term Debt [Abstract]
Senior Notes				295,000,000	295,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				6.625%
Senior Note 6.1% Due 2041 [Member]
Short-term Debt [Abstract]
Senior Notes				326,000,000	326,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				6.10%
Debt Instrument, Interest Rate, Effective Percentage				7.90%
Fair Value, Estimate Not Practicable, Maturity Date [Member]
Short-term Debt [Abstract]
Senior Notes		0.061	0.061
Senior Note 6.625% Due 2042 [Member]
Short-term Debt [Abstract]
Senior Notes				178,000,000	178,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage				6.625%
Senior Note 4.3% Due in 2043 [Member]
Short-term Debt [Abstract]
Senior Notes				298,000,000	298,000,000
7.875% Notes, due 2042 [Member]
Short-term Debt [Abstract]
Junior Subordinated Notes				600,000,000	600,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		7.875%	7.875%	7.875%
8.125% Notes, due 2068 [Member]
Short-term Debt [Abstract]
Junior Subordinated Notes				$ 500,000,000	$ 500,000,000
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		8.125%	8.125%	8.125%
Junior Subordinated Debt [Member]
Debt Instrument, Interest Rate, Stated Percentage [Abstract]
Debt Instrument, Interest Rate, Stated Percentage		10.00%	10.00%
Revolving Credit Facility [Member]
Line of Credit Facility [Abstract]
Ratio of Indebtedness to Net Capital				0.35