SIGNIFICANT ACCOUNTING POLICIES - Investments and Commercial and Agricultural Mortgage Loans on Real Estate (Details) - USD ($) $ in Millions |
9 Months Ended | |
---|---|---|
Sep. 30, 2020 |
Dec. 31, 2019 |
|
Mortgage Loans on Real Estate, Write-down or Reserve, Management Judgment Factor [Line Items] | ||
Carrying value of COLI | $ 962 | $ 942 |
Real estate held for the production of income | Minimum | ||
Mortgage Loans on Real Estate, Write-down or Reserve, Management Judgment Factor [Line Items] | ||
Real estate held for the production of income, useful lives | 40 years | |
Real estate held for the production of income | Maximum | ||
Mortgage Loans on Real Estate, Write-down or Reserve, Management Judgment Factor [Line Items] | ||
Real estate held for the production of income, useful lives | 50 years |