XML 68 R50.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Defined Benefit Pension and Other Postretirement Plans (Tables) | 3 Months Ended
--- | ---
Mar. 31, 2018
Retirement Benefits [Abstract] |
Components of Net Periodic Benefit Costs | The following summarizes the components of net periodic benefit costs:
| Three Months Ended March 31,
| Pension Benefits |  | Other Benefits
(In millions) | 2018 |  | 2017 |  | 2018 |  | 2017
Components of net periodic benefit cost: |  |  |  |  |  |  |
Service cost | $ | 36 |  |  | $ | 31 |  |  | $ | 7 |  |  | $ | 7 |
Interest cost | 18 |  |  | 19 |  |  | 7 |  |  | 8 |
Expected return on plan assets | (26 | ) |  | (26 | ) |  | — |  |  | — |
Amortization – prior service credit | (8 | ) |  | (10 | ) |  | (1 | ) |  | (1 | )
– actuarial loss | 9 |  |  | 9 |  |  | — |  |  | — |
– settlement loss | 1 |  |  | — |  |  | — |  |  | — |
Net periodic benefit cost | $ | 30 |  |  | $ | 23 |  |  | $ | 13 |  |  | $ | 14 |

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