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Employee Benefit Plans - Additional Information (Details) | 3 Months Ended
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Dec. 31, 2019 USD ($)
Foreign Pension Plans, Defined Benefit [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Actual contributions to benefit plans in period | $ 1,000,000
Estimated future contributions in current fiscal year | 4,000,000
Remeasurement due to curtailment gain | 18,000,000
United States Pension Plans of US Entity, Defined Benefit [Member] |
Defined Benefit Plan Disclosure [Line Items] |
Actual contributions to benefit plans in period | $ 0

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