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Reclassifications From Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2019 | Mar. 31, 2018
Reclassifications from accumulated other comprehensive (loss) income |  |
Reclassification of disproportionate tax effects |  | $ 0
Actuarial losses, net |  |
Reclassifications from accumulated other comprehensive (loss) income |  |
Reclassification from Accumulated Other Comprehensive Income, Current Period, before Tax | $ 5 | 5
Reclassification from AOCI, Current Period, Tax | (1) | 0
Reclassifications, after tax | $ 4 | 5
Accounting Standards Update 2018-02 |  |
Reclassifications from accumulated other comprehensive (loss) income |  |
Reclassification of disproportionate tax effects |  | $ 59

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- Definition Amount after tax of reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 17B -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL34724394-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669686-108580 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581 + Details
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