Retirement Benefit Plans (Actual Allocation Percentage and Target Allocation Percentage for the U.S. Pension Plan Assets) (Details)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
U.S. Pension Plan \| U.S. equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	55.30%	53.60%
Target allocations range, minimum	41.00%
Target allocations range, maximum	62.00%
U.S. Pension Plan \| Non-U.S. equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	11.30%	13.00%
Target allocations range, minimum	10.00%
Target allocations range, maximum	16.00%
U.S. Pension Plan \| Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	32.90%	32.90%
Target allocations range, minimum	30.00%
Target allocations range, maximum	40.00%
U.S. Pension Plan \| Money market
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	0.50%	0.50%
Target allocations range, minimum	0.00%
Target allocations range, maximum	10.00%
Non-U.S. Pension Plan \| Fixed income securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	39.70%	37.00%
Target allocations range, minimum	30.00%
Target allocations range, maximum	50.00%
Non-U.S. Pension Plan \| Canadian equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	30.20%	31.00%
Target allocations range, minimum	25.00%
Target allocations range, maximum	35.00%
Non-U.S. Pension Plan \| Non-Canadian equity securities
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	30.10%	32.00%
Target allocations range, minimum	25.00%
Target allocations range, maximum	35.00%
Non-U.S. Pension Plan \| Cash and cash equivalents
Defined Benefit Plan Disclosure [Line Items]
Actual allocation	0.00%	0.00%
Target allocations range, minimum	0.00%
Target allocations range, maximum	5.00%

Name:	us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

Target allocation of investments of this type to total plan assets presented on a weighted average basis.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 1

-Subparagraph (d)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e1928-114920

Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 715

-SubTopic 20

-Section 50

-Paragraph 5

-Subparagraph (c)(i)

-URI http://asc.fasb.org/extlink&oid=35743120&loc=d3e2446-114920

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocations
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Target allocation maximum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocationsRangeMaximum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Target allocation minimum percentage of investments of this type to total plan assets presented on a weighted average basis.

+ References

+ Details

Name:	us-gaap_DefinedBenefitPlanTargetPlanAssetAllocationsRangeMinimum
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Details

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_ForeignPensionPlansDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_DefinedBenefitPlansDisclosuresDefinedBenefitPlansAxis=us-gaap_UnitedStatesPensionPlansOfUSEntityDefinedBenefitMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: