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Accumulated Other Comprehensive Income (Loss) by Component (Notes) | 12 Months Ended
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Dec. 31, 2017
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract] |
Accumulated Other Comprehensive Income (Loss) by Component |
15. | ACCUMULATED OTHER COMPREHENSIVE INCOME (LOSS) BY COMPONENT
The table below presents the changes in Accumulated other comprehensive income (loss) by component.
($ in millions) | Pension and postretirement benefit | Cumulative foreign currency translation adjustment | Total
Balance as of December 31, 2015 | $ | (35.8 | ) | (300.5 | ) | (336.3 | )
Other comprehensive loss before reclassification | (33.6 | ) | (181.9 | ) | (215.5 | )
Amounts reclassified from AOCI after tax expense of $0.2, $- and $0.2 | 0.7 |  | — |  | 0.7 |
Other comprehensive loss after tax benefit of $10.4, $- and $10.4 | (32.9 | ) | (181.9 | ) | (214.8 | )
Balance as of December 31, 2016 | (68.7 | ) | (482.4 | ) | (551.1 | )
Other comprehensive income before reclassification | 4.4 |  | 201.1 |  | 205.5 |
Amounts reclassified from AOCI after tax expense of $0.9, $- and $0.9 | 3.8 |  | — |  | 3.8 |
Other comprehensive income after tax benefit of $0.3, $- and $0.3 | 8.2 |  | 201.1 |  | 209.3 |
Balance as of December 31, 2017 | $ | (60.5 | ) | (281.3 | ) | (341.8 | )
For pension and postretirement benefits, we report amounts reclassified from Accumulated other comprehensive income (loss) in Compensation and benefits within the Consolidated Statements of Comprehensive Income.

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- Definition The entire disclosure for comprehensive income, which includes, but is not limited to, 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -URI http://asc.fasb.org/topic&trid=2134417 + Details
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