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v2.4.1.9

CONSOLIDATED COMPREHENSIVE INCOME STATEMENTS (USD $) In Millions, unless otherwise specified | 3 Months Ended | 12 Months Ended
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Dec. 26, 2014 | Sep. 26, 2014 | Jun. 27, 2014 | Mar. 28, 2014 | Dec. 27, 2013 | Sep. 27, 2013 | Jun. 28, 2013 | Mar. 29, 2013 | Dec. 26, 2014 | Dec. 27, 2013 | Dec. 28, 2012
Net Earnings | $ 491 us-gaap_NetIncomeLoss | $ 509 us-gaap_NetIncomeLoss | $ 529 us-gaap_NetIncomeLoss | $ 398 us-gaap_NetIncomeLoss | $ 426 us-gaap_NetIncomeLoss | $ 455 us-gaap_NetIncomeLoss | $ 521 us-gaap_NetIncomeLoss | $ 462 us-gaap_NetIncomeLoss | $ 1,927 us-gaap_NetIncomeLoss | $ 1,864 us-gaap_NetIncomeLoss | $ 1,863 us-gaap_NetIncomeLoss
Other Comprehensive (Loss) Income, Net of Tax |  |  |  |  |  |  |  |  | (143)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent | 413 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent | (61)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent
Comprehensive Earnings |  |  |  |  |  |  |  |  | 1,784 us-gaap_ComprehensiveIncomeNetOfTax | 2,277 us-gaap_ComprehensiveIncomeNetOfTax | 1,802 us-gaap_ComprehensiveIncomeNetOfTax
Pension and Other Post-Employment Benefits |  |  |  |  |  |  |  |  |  |  |
Other Comprehensive (Loss) Income, Net of Tax |  |  |  |  |  |  |  |  | (149)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember | 389 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember | (52)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = us-gaap_AccumulatedDefinedBenefitPlansAdjustmentMember
Other |  |  |  |  |  |  |  |  |  |  |
Other Comprehensive (Loss) Income, Net of Tax |  |  |  |  |  |  |  |  | $ 6 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = csx_AccumulatedOtherAdjustmentsMember | $ 24 us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = csx_AccumulatedOtherAdjustmentsMember | $ (9)us-gaap_OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent / us-gaap_StatementEquityComponentsAxis = csx_AccumulatedOtherAdjustmentsMember

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