Retirement and Other Benefit Programs (Expected Net Pension and OPEB Plan Payments for the Next 10 Years) (Details) $ in Millions	Dec. 31, 2017 USD ($)
US \| Pensions
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2018	$ 6.0
2019	7.7
2020	9.2
2021	10.7
2022	12.2
2023 through 2027	84.3
US \| OPEB
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2018	0.4
2019	0.5
2020	0.6
2021	0.8
2022	0.9
2023 through 2027	6.8
International \| Pensions
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
2018	28.1
2019	20.7
2020	22.2
2021	24.3
2022	25.4
2023 through 2027	$ 134.8

Amount of benefits for defined benefit plan expected to be paid in five fiscal years after fifth fiscal year following latest fiscal year.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=82843861&loc=d3e1928-114920

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