Employee Benefit Plans (Details 4) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	100.00%	100.00%
Pension Plans
Amounts recognized in accumulated other comprehensive income
Net actuarial gain (loss)	$ (128.5)	$ (93.4)
Prior service credit	(0.8)	(1.0)
Total amount recognized	(129.3)	(94.4)
Amounts in accumulated other comprehensive income that are expected to be recognized as components of net periodic benefit cost during the next fiscal year	(7.5)
Estimated increase (decrease) in 2014 benefit obligation
0.50% increase in discount rate	(1.5)
0.50% decrease in discount rate	2.2
0.50% increase in long-term return on assets	(1.8)
0.50% decrease in long-term return on assets	1.8
Estimated increase (decrease) in 2013 benefit obligation
0.50% increase in discount rate	(31.7)
0.50% decrease in discount rate	37.5
Non-U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	100.00%	100.00%
Postretirement Health and Other Plans
Amounts recognized in accumulated other comprehensive income
Net actuarial gain (loss)	(5.8)	4.6
Prior service credit	0	0.3
Total amount recognized	(5.8)	4.9
Amounts in accumulated other comprehensive income that are expected to be recognized as components of net periodic benefit cost during the next fiscal year	0.1
Annual rate of increase in the per capita cost of covered health care benefits assumed for measurement purposes (as a percent)	6.40%
Ultimate health care cost trend rate (as a percent)	4.50%
Estimated increase (decrease) in 2014 benefit obligation
0.50% increase in discount rate	0
0.50% decrease in discount rate	0.2
1% increase in medical trend rates	0.9
1% decrease in medical trend rates	(0.4)
Estimated increase (decrease) in 2013 benefit obligation
0.50% increase in discount rate	(2.5)
0.50% decrease in discount rate	2.7
1% increase in medical trend rates	5.0
1% decrease in medical trend rates	$ (4.4)
Equity \| Non-U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	25.00%	20.20%
Equity \| U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	24.50%	26.10%
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Target Allocations (as a percent)	25.00%
Equity \| Minimum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Minimum (as a percent)	0.00%
Equity \| Maximum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Maximum (as a percent)	25.00%
Fixed income \| Non-U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	19.60%	23.80%
Fixed income \| U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	74.90%	73.40%
Other \| Non-U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	55.40%	56.00%
Other \| U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	0.60%	0.50%
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Target Allocations (as a percent)	0.00%
Other \| Minimum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Minimum (as a percent)	0.00%
Other \| Maximum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Maximum (as a percent)	100.00%
Debt Securities \| Non-U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	19.60%
Debt Securities \| U.S. Pension Plans
Defined Benefit Plan, Information about Plan Assets [Abstract]
Weighted-average asset allocation (as a percent)	74.90%
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Target Allocations (as a percent)	75.00%
Debt Securities \| Minimum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Minimum (as a percent)	0.00%
Debt Securities \| Maximum \| Non-U.S. Pension Plans
Defined Benefit Plan, Assets, Target Allocations [Abstract]
Maximum (as a percent)	100.00%

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The effect of a 0.5 percentage-point decrease in the discount rate on the retirement benefit costs in the next fiscal year.

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The effect of a 0.5 percentage-point decrease in the discount rate on the retirement benefit obligation.

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The effect of a 0.5 percentage-point decrease in the long-term return on assets on the retirement benefit costs in the next fiscal year.

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The effect of a 0.5 percentage-point increase in the discount rate on the retirement benefit costs in the next fiscal year.

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The effect of a 0.5 percentage-point increase in the discount rate on the retirement benefit obligation.

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The effect of a 0.5 percentage-point increase in the long-term return on assets on the retirement benefit costs in the next fiscal year.

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The pretax total of net gain (loss), prior service cost (credit), and transition assets (obligations), as well as minimum pension liability if still remaining, included in accumulated other comprehensive income associated with a defined benefit pension or other postretirement plan(s) because they have yet to be recognized as components of net periodic benefit cost.

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The pretax net amount of gains and losses that are not yet recognized as a component of net periodic benefit cost, and that are recognized as increases or decreases in other comprehensive income as they arise. Gains and losses are due to changes in the value of either the benefit obligation or the plan assets resulting from experience different from that assumed or from a change in an actuarial assumption, or the consequence of a decision to temporarily deviate from the substantive plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Amount related to the pretax cost of benefit changes attributable to plan participants' prior service pursuant to a plan amendment or a plan initiation, which has not yet been recognized as components of net periodic benefit cost.

+ References

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Amount included in accumulated other comprehensive income (AOCI) expected to be recognized as components of net periodic benefit cost for the fiscal year that follows the most recent annual statement of financial position, including gain (loss), prior service cost (credit), and transition asset (obligation).

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Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

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Amount of effect of a one-percentage-point decrease in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

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The effect of a one-percentage-point increase in the assumed health care cost trend rates on the accumulated postretirement benefit obligation for health care benefits.

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The effect of a one-percentage-point increase in the assumed health care cost trend rates on the aggregate of the service and interest cost components of net periodic postretirement health care benefit costs.

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The assumed health care cost trend rate for the next year used to measure the expected cost of benefits covered by the plan (gross eligible charges). This is based upon the annual rate of change in the cost of health care benefits currently provided by the postretirement benefit plan, due to factors other than changes in the composition of the plan population by age and dependency status.

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

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

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

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The ultimate trend rate for health care costs.

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- Definition

Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held.

+ References

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

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