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Employee Benefit Plans - Funded Status Recognized on Balance Sheet (Details) - USD ($) $ in Millions | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Defined Pension Benefits |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other assets | $ 121 | $ 108
Other liabilities | (11) | (12)
Net amount recognized as of December 31, | 110 | 96
Other Postretirement Benefits |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Other assets | 0 | 0
Other liabilities | (10) | (15)
Net amount recognized as of December 31, | $ (10) | $ (15)

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