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Employee Benefits - Additional Information (Details) $ in Millions | 3 Months Ended
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Mar. 31, 2022 USD ($)
Defined Benefit Plan Disclosure [Line Items] |
Pre-Medicare company contribution for retiree medical coverage, maximum percent | 4.00%
Defined benefit plan, expected contributions during the remaining of fiscal year | $ 1,300
Contribution to other post retirement plans | 46
Pension Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, contributions by employer to employee pension plan | 463
Pension Benefits | United States |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, contributions by employer to employee pension plan | 431
Defined benefit plan, expected contributions during the remaining of fiscal year | 1,100
Pension Benefits | International |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, expected contributions during the remaining of fiscal year | 200
Other Benefits |
Defined Benefit Plan Disclosure [Line Items] |
Defined benefit plan, expected contributions during the remaining of fiscal year | $ 150

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