Revenue (Tables)

3 Months Ended

Mar. 31, 2018

Revenue From Contract With Customer [Abstract]

Summary of Revenues Disaggregated by Product Line

The following table presents our revenues disaggregated by product line (dollars in millions):

	Three Months Ended March 31,
	2018		2017 (a)
Packaging	$	1,402.9	$	1,257.0
Paper		269.4		259.2
Corporate and other		18.3		20.3
Total revenue	$	1,690.6	$	1,536.5

(a) Prior periods have not been adjusted under the modified retrospective method for Topic 606.