XML 39 R29.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Employee Retirement Plans (Tables) | 9 Months Ended
--- | ---
Sep. 30, 2018
Employee Retirement Plans [Abstract] |
Net Periodic Benefit Expense |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿ |  | Pension benefits |  | Postretirement benefits
﻿ |  | Three months ended |  | Nine months ended |  | Three months ended |  | Nine months ended
﻿ |  | September 30, |  | September 30, |  | September 30, |  | September 30,
﻿ |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017 |  | 2018 |  | 2017
﻿ |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
﻿Service cost |  | $ | 26 |  | $ | 22 |  | $ | 77 |  | $ | 69 |  | $ | 3 |  | $ | 2 |  | $ | 9 |  | $ | 7
﻿Interest cost |  |  | 32 |  |  | 32 |  |  | 97 |  |  | 94 |  |  | 6 |  |  | 7 |  |  | 18 |  |  | 20
﻿Expected return on plan assets |  |  | (47) |  |  | (43) |  |  | (142) |  |  | (130) |  |  |  |  |  |  |  |  |  |  |  |
﻿Amortization of prior service cost (credit) |  |  | 2 |  |  | 1 |  |  | 6 |  |  | 4 |  |  | (2) |  |  | (1) |  |  | (5) |  |  | (2)
﻿Recognition of actuarial loss |  |  |  |  |  |  |  |  | 1 |  |  | 15 |  |  |  |  |  |  |  |  |  |  |  |
﻿Total pension and postretirement benefit expense |  | $ | 13 |  | $ | 12 |  | $ | 39 |  | $ | 52 |  | $ | 7 |  | $ | 8 |  | $ | 22 |  | $ | 25
﻿

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration