After Tax Impact Of Prior Year Development On Shareholders Net Income

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- Details

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- Details

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- Definition

The amount needed to reflect the estimated ultimate cost of settling claims relating to health insurance insured events that have occurred on or before a particular date (ordinarily, the balance sheet date) and the amount needed to provide for the estimated ultimate cost required to investigate and settle claims relating to insured events that have occurred on or before a particular date (ordinarily, the balance sheet date), whether or not reported to the insurer at that date.

+ Details

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- Definition

The amount needed to reflect the estimated ultimate cost of settling medical claims relating to insured events that have occurred on or before the balance sheet date, whether or not reported to the insurer at that date. Medical claims payable reflects estimates of the ultimate cost of claims that have been incurred but not yet reported, those which have been reported but not yet paid and other medical expense payable, which primarily comprises accruals for provider incentives and other amounts payable to providers. This liability is net of reinsurance and other amounts receivable.

+ Details

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- Definition

Amount of payments made in the reporting period to settle medical claims incurred in the current period and related medical claims settlement costs.

+ Details

Name:	ci_LiabilityForUnpaidMedicalClaimsAndClaimsAdjustmentExpenseClaimsPaidCurrentYear
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- Definition

Amount of provision in the period for medical claims incurred in the reporting period and related claims settlement costs.

+ Details

Name:	ci_LiabilityForUnpaidMedicalClaimsAndClaimsAdjustmentExpenseIncurredClaimsCurrentYear
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- Definition

Amount of provision in the period for medical claims incurred in prior reporting periods and related claims settlement costs.

+ Details

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- Definition

Total amount of payments made during the reporting period to settle insured medical claims and pay costs incurred in the medical claims settlement process.

+ Details

Name:	ci_LiabilityForUnpaidMedicalClaimsAndMedicalClaimsAdjustmentExpenseMedicalClaimsPaid
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- Definition

Amount of payments made in the reporting period to settle medical claims incurred in prior periods and related medical claims settlement costs.

+ Details

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- Definition

Estimated costs as of the balance sheet date of settling insured medical claims and costs incurred in the medical claims settlement process for claims that have not yet been submitted to the insurance company for reimbursement.

+ Details

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- Definition

Liability for other medical expense payable included in medical claims payable.

+ Details

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Data Type:	xbrli:monetaryItemType
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- Definition

Liability for claims reported but not yet paid.

+ Details

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- Definition

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

+ Details

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- Details

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- Definition

This is the impact on incurred claims related to prior years' medical claims payable due to the difference in actual experience from the Company's key assumptions.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This is the impact on incurred claims related to prior years' medical claims payable due to the difference in actual experience from the Company's key assumptions shown as a percentage

+ Details

Name:	ci_PolicyholderBenefitsAndClaimsIncurredHealthCareActualExperienceDifferenceFromAssumptionsPercentage
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- Definition

This is the impact on incurred claims related to prior years medical claims payable due to completion factors.

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
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- Definition

This is the impact on incurred claims related to prior years' medical claims payable due to completion factors shown as a percentage

+ Details

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Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

This is the impact on incurred claims related to prior years' medical claims payable due to medical cost trends.

+ Details

Name:	ci_PolicyholderBenefitsAndClaimsIncurredHealthCareMedicalCostTrends
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Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This is the impact on incurred claims related to prior years' medical claims payable due to medical cost trends shown as a percentage

+ Details

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- Details

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- Details

Name:	ci_ScheduleOfMedicalClaimsPayableDetailsAbstract
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- Definition

Provision for benefits, claims and claims settlement expenses incurred during the period for health care insurance contracts net of the effects of contracts assumed and ceded.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Paragraph 5

-Article 7

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 944

-SubTopic 225

-Section S99

-Paragraph 1

-Subparagraph (SX 210.7-04.5)

-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

+ Details

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Health Care Medical Claims Payable (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended		12 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010	Dec. 31, 2010	Dec. 31, 2009
Health Care Medical Claims Payable Text Details [Abstract]
Difference in experience from assumptions, medical claims payable			$ (124)		$ (93)
Percent difference in experience from assumptions, medical claims payable			1.40%		1.30%
Difference in completion factors, medical claims payable			(84)		(51)
Percent difference in completion factors, medical claims payable			0.90%		0.70%
Difference in medical cost trend, medical claims payable			(40)		(42)
Percent difference in medical cost trend, medical claims payable			0.50%		0.60%
After Tax Impact Of Prior Year Development On Shareholders Net Income			52	26
Schedule Of Medical Claims Payable Activity Details [Abstract]
Balance at January 1,			1,246	921	921
Less: Reinsurance and other amounts recoverable			192		236	206
Balance at January 1, net			953		1,010	715
Incurred Claims Details [Abstract]
Current year			6,249		8,663
Prior years			(124)		(93)
Total incurred	2,014	2,148	6,125	6,435	8,570
Paid Claims Details [Abstract]
Current year			5,352		7,682
Prior years			830		593
Total paid			6,182		8,275
Ending Balance, net			953		1,010	715
Add: Reinsurance and other amounts recoverable			192		236	206
Medical claims payable	1,145		1,145		1,246	921
Schedule Of Medical Claims Payable Details [Abstract]
Incurred but not yet reported			981		1,067
Reported claims in process	147		147		164
Other medical expense payable	17		17		15
Medical claims payable	$ 1,145		$ 1,145		$ 1,246	$ 921