Amount of actuarial present value of benefits attributed to service rendered by employee for defined benefit plan.

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Amount of contribution received by defined benefit plan from employer which increases plan assets.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Amount of contributions expected to be received by defined benefit plan from employer in fiscal year. Excludes contributions paid by employer in current fiscal year.

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Amount of defined benefit plan cost (credit), classified as other.

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Pension (Details) - USD ($)	3 Months Ended
Pension (Details) - USD ($)	Mar. 31, 2020	Dec. 31, 2019
Defined Benefit Plan Disclosure [Line Items]
Net pension benefit
United States \| Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Increase in pension liability		$ 142,000,000
Contributions	0
Expected plan contributions for the remaining fiscal year