XML 56 R41.htm IDEA: XBRL DOCUMENT
v3.20.2

Investments - Unrealized Loss Position Maturities (Details) - USD ($) $ in Millions | Sep. 30, 2020 | Dec. 31, 2019
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than one year | $ 36 |
One year through five years | 624 |
After five years through ten years | 504 |
Greater than ten years | 296 |
Fair Value | 2,259 | $ 1,169
Unrealized Losses |  |
Less than one year | 0 |
One year through five years | 7 |
After five years through ten years | 13 |
Greater than ten years | 8 |
Unrealized Losses | 38 | 11
Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 70 |
Fair Value | 70 | 16
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Unrealized Losses | 0 | 0
Commercial mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 106 |
Fair Value | 106 | 49
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Unrealized Losses | 0 | 0
Other asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 623 |
Fair Value | 623 | 436
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 10 |
Unrealized Losses | 10 | $ 5
Supporting experience-rated products |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than one year | 0 |
One year through five years | 1 |
After five years through ten years | 11 |
Greater than ten years | 11 |
Fair Value | 32 |
Unrealized Losses |  |
Less than one year | 0 |
One year through five years | 0 |
After five years through ten years | 1 |
Greater than ten years | 0 |
Unrealized Losses | 1 |
Supporting experience-rated products | Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 0 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Supporting experience-rated products | Commercial mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 2 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Supporting experience-rated products | Other asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 7 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Supporting remaining products |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than one year | 36 |
One year through five years | 623 |
After five years through ten years | 493 |
Greater than ten years | 285 |
Fair Value | 2,227 |
Unrealized Losses |  |
Less than one year | 0 |
One year through five years | 7 |
After five years through ten years | 12 |
Greater than ten years | 8 |
Unrealized Losses | 37 |
Supporting remaining products | Residential mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 70 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Supporting remaining products | Commercial mortgage-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 104 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | 0 |
Supporting remaining products | Other asset-backed securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Debt securities, maturity, without single maturity date, fair value | 616 |
Unrealized Losses |  |
Debt securities, maturity, without single maturity date, unrealized losses | $ 10 |

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After Five Through Ten Years + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterFiveThroughTenYears
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After Five Through Ten Years, Accumulated Loss + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterFiveThroughTenYearsAccumulatedLoss
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After One Through Five Years + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterOneThroughFiveYears
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After One Through Five Years, Accumulated Loss + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterOneThroughFiveYearsAccumulatedLoss
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After Ten Years + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterTenYears
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, After Ten Years, Accumulated Loss + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateAfterTenYearsAccumulatedLoss
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, Within One Year + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateWithinOneYear
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-For-Sale, Continuous Unrealized Loss Position, Allocated And Single Maturity Date, Within One Year, Accumulated Loss + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionAllocatedAndSingleMaturityDateWithinOneYearAccumulatedLoss
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, without Single Maturity Date, Amortized Cost + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableforsaleContinuousUnrealizedLossPositionwithoutSingleMaturityDateAmortizedCost
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Debt Securities, Available-for-sale, Continuous Unrealized Loss Position, without Single Maturity Date, Fair Value + References No definition available. + Details
Name: | cvs_DebtSecuritiesAvailableforsaleContinuousUnrealizedLossPositionwithoutSingleMaturityDateFairValue
Namespace Prefix: | cvs_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- References No definition available. + Details
Name: | us-gaap_AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAccumulatedLossAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position without allowance for credit loss. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(1) -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 55 -Paragraph 8 -URI http://asc.fasb.org/extlink&oid=121590138&loc=SL82922954-210456 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPosition
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121645371&loc=d3e27290-111563 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 326 -SubTopic 30 -Section 50 -Paragraph 4 -Subparagraph (a)(2) -URI http://asc.fasb.org/extlink&oid=121582814&loc=SL82922888-210455 + Details
Name: | us-gaap_DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_ScheduleOfAvailableForSaleSecuritiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_ResidentialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=us-gaap_CommercialMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FinancialInstrumentAxis=cvs_OtherAssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cvs_SupportingExperienceRatedProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ProductOrServiceAxis=cvs_SupportingRemainingProductsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |