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v3.20.4

Accrued Restructuring and Other Costs (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other costs | $ 104 | $ 0 | $ 0
Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Payments for Restructuring | (50) |  |
Employee Severance | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Payments for Restructuring | (19) |  |
Information Technology | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Payments for Restructuring | (2) |  |
Professional fees and other expenses | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Payments for Restructuring | (29) |  |
Other Operating Income (Expense) [Member] | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other costs | 104 |  |
Other Operating Income (Expense) [Member] | Employee Severance | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other costs | 73 |  |
Other Operating Income (Expense) [Member] | Information Technology | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other costs | 2 |  |
Other Operating Income (Expense) [Member] | Professional fees and other expenses | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring and other costs | 29 |  |
Other liabilities | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 0 |  |
Restructuring Reserve, Ending Balance | 54 | 0 |
Other liabilities | Employee Severance | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 0 |  |
Restructuring Reserve, Ending Balance | 54 | 0 |
Other liabilities | Information Technology | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 0 |  |
Restructuring Reserve, Ending Balance | 0 | 0 |
Other liabilities | Professional fees and other expenses | Hartford Next Program |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Reserve, Beginning Balance | 0 |  |
Restructuring Reserve, Ending Balance | $ 0 | $ 0 |

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