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Other Income - Net (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 30, 2016
Other Income and Expenses [Abstract] |  |  |
Net Periodic Pension and Postretirement Benefit Credit (Expense) | $ 38 | $ 32 | $ (24)
Interest Income | 32 | 13 | 10
Income from Non-operating Real Estate Activities | 0 | 0 | 27
Miscellaneous Income | 4 | 8 | 9
Total Other Income - Net | 74 | 53 | 22
Gross Revenue from Real Estate Operations included above | $ 0 | $ 0 | $ 56

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- Definition Amount, before tax, of non-operating real estate sales, leasing, acquisition, and management and development activities + References No definition available. + Details
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- Definition The aggregate gross revenue from real estate operations included in Other Income - Net during the reporting period. + References No definition available. + Details
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- Definition The net amount of nonoperating interest income (expense). + References No definition available. + Details
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- Definition Amount of expense (reversal of expense) for net periodic benefit cost components, excluding service cost component, of defined benefit plan. Amount includes, but is not limited to, interest cost, expected (return) loss on plan asset, amortization of prior service cost (credit), amortization of (gain) loss, amortization of transition (asset) obligation, settlement (gain) loss, curtailment (gain) loss and certain termination benefits. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 45 -Paragraph 3A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=109237824&loc=SL108413299-114919 + Details
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- Definition The aggregate amount of income or expense from ancillary business-related activities (that is to say, excluding major activities considered part of the normal operations of the business). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.7) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.9) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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