Employees	3 Months Ended
Mar. 31, 2020
Retirement Benefits [Abstract]
Employees	Employees Postretirement Benefits The net periodic (benefit) cost for our postretirement benefit plans was not material for the three months ended March 31, 2020 or 2019. Additionally, our estimated contributions to our pension plans during 2020 have not changed significantly from amounts previously disclosed in the notes to the consolidated financial statements for the year ended December 31, 2019.

The entire disclosure for pension and other postretirement benefits.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

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