XML 87 R58.htm IDEA: XBRL DOCUMENT
v3.19.3

Derivative Instruments (Maturity Of The Notional Amounts Of Derivative Financial Instruments) (Details) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2019 USD ($)
Maturity of the notional amounts of derivative financial instruments |  |
Remaining Life Less Than 1 Year | $ 37,930 |
Remaining Life - 1 - 5 Years | 24,392 |
Remaining Life - 6 - 10 Years | 58,605 |
Remaining Life - 11 - 30 Years | 29,662 |
Remaining Life Over - 30 Years | 5,020 |
Remaining Life - Total Years | 155,609 |
Interest Rate Contracts [Member] |  |
Maturity of the notional amounts of derivative financial instruments |  |
Remaining Life Less Than 1 Year | 10,664 | [1]
Remaining Life - 1 - 5 Years | 17,545 | [1]
Remaining Life - 6 - 10 Years | 54,294 | [1]
Remaining Life - 11 - 30 Years | 28,129 | [1]
Remaining Life Over - 30 Years | 1,713 | [1]
Remaining Life - Total Years | $ 112,345 | [1]
Derivative maturity date | Apr. 20, 2067 |
Foreign currency contracts [Member] |  |
Maturity of the notional amounts of derivative financial instruments |  |
Remaining Life Less Than 1 Year | $ 290 | [2]
Remaining Life - 1 - 5 Years | 318 | [2]
Remaining Life - 6 - 10 Years | 863 | [2]
Remaining Life - 11 - 30 Years | 1,520 | [2]
Remaining Life Over - 30 Years | 56 | [2]
Remaining Life - Total Years | $ 3,047 | [2]
Derivative maturity date | Feb. 20, 2050 |
Equity market contracts [Member] |  |
Maturity of the notional amounts of derivative financial instruments |  |
Remaining Life Less Than 1 Year | $ 26,976 |
Remaining Life - 1 - 5 Years | 6,529 |
Remaining Life - 6 - 10 Years | 3,448 |
Remaining Life - 11 - 30 Years | 13 |
Remaining Life Over - 30 Years | 3,251 |
Remaining Life - Total Years | $ 40,217 |
[1] | As of September 30, 2019, the latest maturity date for which we were hedging our exposure to the variability in future cash flows for these instruments was April 20, 2067.
[2] | As of September 30, 2019, the latest maturity date for which we were hedging our exposure to the variability in future cash flows for these instruments was February 20, 2050.

X
- Definition Total notional amounts of derivative financial instruments maturing in 11 - 30 years. + References No definition available. + Details
Name: | lnc_RemainingLife11To30Years
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total notional amounts of derivative financial instruments maturing in 1 - 5 years. + References No definition available. + Details
Name: | lnc_RemainingLife1To5Years
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total notional amounts of derivative financial instruments maturing in 6 - 10 years. + References No definition available. + Details
Name: | lnc_RemainingLife6To10Years
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total notional amounts of derivative financial instruments maturing in less than 1 year. + References No definition available. + Details
Name: | lnc_RemainingLifeLessThan1Year
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Total notional amounts of derivative financial instruments with maturity dates over 30 years + References No definition available. + Details
Name: | lnc_RemainingLifeOver30Years
Namespace Prefix: | lnc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Definition Date the derivative contract matures, in CCYY-MM-DD format. + References No definition available. + Details
Name: | us-gaap_DerivativeMaturityDates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Nominal or face amount used to calculate payment on derivative. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1B -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5580258-113959 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=109980867&loc=SL5579245-113959 + Details
Name: | us-gaap_DerivativeNotionalAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_InterestRateContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_ForeignExchangeContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DerivativeInstrumentRiskAxis=us-gaap_EquityContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |