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Employee Benefit And Retirement Plans (Tables)
 12 Months Ended
Dec. 31, 2016
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
Summary of under-funded or non-funded pension benefit plans with projected benefit obligation in excess of plan assets at December 31, (in millions):
 
Pension Benefits
 
2016
 
2015
Projected benefit obligation
$
1,941.9

 
$
1,253.7

Fair value of plan assets
1,449.5

 
948.4
Schedule of Accumulated Benefit Obligations in Excess of Fair Value of Plan Assets [Table Text Block]
Summary of pension plans with accumulated obligations in excess of plan assets at December 31, (in millions):
 
Pension Benefits
 
2016
 
2015
Accumulated benefit obligation
$
1,933.2

 
$
1,249.9

Fair value of plan assets
1,449.5

 
948.4
Schedule of Expected Benefit Payments [Table Text Block]
Estimated future benefit payments under the Company’s defined benefit pension plans and postretirement benefit plans are as follows as of December 31, 2016 (in millions):
 
2017
2018
2019
2020
2021
Thereafter
Pension benefits
$
126.8

$
126.4

$
127.3

$
130.3

$
130.1

$
647.4

Postretirement benefits
$
6.5

$
6.4

$
6.3

$
6.1

$
5.9

$
27.0
Defined Benefit Pension [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
The following provides a reconciliation of benefit obligations, plan assets and funded status of the Company’s noncontributory defined benefit pension plans, including the SERP, as of December 31, (dollars in millions):
 
U.S.
 
International        
 
2016
 
2015
 
2016
 
2015
Change in benefit obligation:
 
 
 
 
 
 
 
Benefit obligation at beginning of year
$
937.7

 
$
1,060.7

 
$
613.6

 
$
671.7

Service cost
2.7

 
3.2

 
6.6

 
5.8

Interest cost
45.1

 
41.3

 
17.5

 
19.6

Actuarial (gain) loss
(16.3
)
 
(91.9
)
 
104.2

 
(51.8
)
Currency translation
—

 
—

 
(107.9
)
 
(34.7
)
Benefits paid
(98.2
)
 
(140.4
)
 
(25.3
)
 
(28.7
)
Acquisitions
721.2

 
64.8

 
64.8

 
11.2

Curtailments, settlements and other
—

 
—

 
(26.1
)
 
20.5

Benefit obligation at end of year (1) 
$
1,592.2

 
$
937.7

 
$
647.4

 
$
613.6
Schedule of Changes in Fair Value of Plan Assets [Table Text Block]
Change in plan assets:
 
 
 
 
 
 
 
Fair value of plan assets at beginning of year
$
722.9

 
$
752.0

 
$
560.3

 
$
584.4

Actual return on plan assets
70.7

 
(14.0
)
 
112.4

 
(7.0
)
Contributions
12.0

 
83.1

 
16.4

 
14.5

Currency translation
—

 
—

 
(105.9
)
 
(26.9
)
Benefits paid
(98.2
)
 
(140.4
)
 
(25.3
)
 
(28.7
)
Acquisitions
523.2

 
42.2

 
34.0

 
15.0

Settlements and other
—

 
—

 
(26.6
)
 
9.0

Fair value of plan assets at end of year
$
1,230.6

 
$
722.9

 
$
565.3

 
$
560.3

Funded status at end of year
$
(361.6
)
 
$
(214.8
)
 
$
(82.1
)
 
$
(53.3
)
Amounts recognized in the Consolidated Balance Sheets:
 

 
 

 
 

 
 

Prepaid benefit cost, included in other assets
$
—

 
$
—

 
$
48.7

 
$
35.9

Accrued current benefit cost, included in other accrued liabilities
(12.5
)
 
(9.6
)
 
(4.4
)
 
(3.3
)
Accrued noncurrent benefit cost, included in other noncurrent liabilities
(349.1
)
 
(205.2
)
 
(126.4
)
 
(85.9
)
Total
$
(361.6
)
 
$
(214.8
)
 
$
(82.1
)
 
$
(53.3
)
Schedule of Assumptions Used [Table Text Block]
 
U.S.
 
International        
 
2016
 
2015
 
2016
 
2015
Assumptions:
 
 
 
 
 
 
 
Weighted-average assumptions used to determine benefit obligation:
 
 
 
 
 
 
 
Discount rate
3.98
%
 
4.23
%
 
2.35
%
 
3.37
%
Long-term rate of compensation increase
2.50
%
 
2.50
%
 
3.53
%
 
3.58
%
 
 
 
 
 
 
 
 
Accumulated benefit obligation (1)
$
1,592.2

 
$
937.7

 
$
635.1

 
$
604.6
Schedule Of Company's Pension Cost And Supplemental Retirement Plans
Net pension cost includes the following components for the years ended December 31, (dollars in millions):
 
U.S.
 
International
 
2016
 
2015
 
2014
 
2016
 
2015
 
2014
Service cost
$
2.7

 
$
3.2

 
$
4.1

 
$
6.6

 
$
5.8

 
$
5.9

Interest cost
45.1

 
41.3

 
45.1

 
17.5

 
19.6

 
25.3

Expected return on plan assets
(69.1
)
 
(58.0
)
 
(57.5
)
 
(20.8
)
 
(22.1
)
 
(26.6
)
Amortization of:
 
 
 
 
 
 
 
 
 
 
 
Prior service (credit) cost
(0.1
)
 
(0.1
)
 
—

 
0.5

 
—

 
(0.1
)
Actuarial loss
21.8

 
26.2

 
24.2

 
2.2

 
3.4

 
3.2

Curtailment, settlement and termination benefit costs
—

 
52.1

 
65.4

 
2.9

 
0.4

 
(0.1
)
Net pension cost
$
0.4

 
$
64.7

 
$
81.3

 
$
8.9

 
$
7.1

 
$
7.6
Schedule of Assumptions Used, Periodic Benefit Cost [Table Text Block]
 
U.S.
 
International        
Assumptions:
2016
 
2015
 
2014
 
2016
 
2015
 
2014
Weighted-average assumptions used to determine net periodic benefit cost:
 
 
 
 
 
 
 
 
 
 
 
Effective discount rate for benefit obligations
4.06
%
 
4.00
%
 
4.50
%
 
3.29
%
 
3.03
%
 
4.21
%
Effective rate for interest on benefit obligations
3.21
%
 
4.00
%
 
4.50
%
 
2.92
%
 
3.03
%
 
4.21
%
Effective rate for service cost
4.16
%
 
4.00
%
 
4.50
%
 
3.39
%
 
3.03
%
 
4.21
%
Effective rate for interest on service cost
3.67
%
 
4.00
%
 
4.50
%
 
3.35
%
 
3.03
%
 
4.21
%
Long-term rate of return on plan assets
6.34
%
 
7.25
%
 
7.25
%
 
3.93
%
 
3.86
%
 
5.01
%
Long-term rate of compensation increase
2.50
%
 
2.50
%
 
2.50
%
 
3.51
%
 
3.60
%
 
4.21
%
Schedule of Allocation of Plan Assets [Table Text Block]
The composition of domestic pension plan assets at December 31, 2016 and 2015 is as follows:
 
 
Plan Assets - Domestic Plans
 
 
December 31, 2016
 
 
Fair Value Measurements
 
NAV-Based
 
 
Asset Category
  
Level 1
 
Level 2
 
Level 3
 
Subtotal
 
Assets
 
Total
Equity securities and funds:
  
 
 
 
 
 
 


 
 
 


Domestic
 
$
149.8

 
$
—

 
$
—

 
$
149.8

 
$
120.6

 
$
270.4

International
 
80.4

 
—

 
—

 
80.4

 
101.2

 
181.6

Fixed income securities and funds
  
372.7

 
—

 
—

 
372.7

 
211.0

 
583.7

Alternative investments
 
23.5

 
—

 
61.4

 
84.9

 
81.2

 
166.1

Cash and other
  
12.5

 
15.2

 
1.1

 
28.8

 
—

 
28.8

Total
  
$
638.9

 
$
15.2

 
$
62.5

 
$
716.6

 
$
514.0

 
$
1,230.6

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 
 
Fair Value Measurements
 
NAV-Based
 
 
Asset Category
  
Level 1
 
Level 2
 
Level 3
 
Subtotal
 
Assets
 
Total
Equity securities and funds:
  
 
 
 
 
 
 


 
 
 


Domestic
 
$
25.8

 
$
—

 
$
—

 
$
25.8

 
$
129.1

 
$
154.9

International
 
20.3

 
—

 
—

 
20.3

 
85.7

 
106.0

Fixed income securities and funds
  
307.7

 
19.7

 
—

 
327.4

 
82.1

 
409.5

Alternative investments
 
—

 
—

 
26.3

 
26.3

 
—

 
26.3

Cash and other
  
2.6

 
23.6

 
—

 
26.2

 
—

 
26.2

Total
  
$
356.4

 
$
43.3

 
$
26.3

 
$
426.0

 
$
296.9

 
$
722.9

The composition of international pension plan assets at December 31, 2016 and 2015 is as follows:
 
 
Plan Assets - International Plans
 
 
December 31, 2016
 
 
Fair Value Measurements
 
NAV-Based
 
 
Asset Category
  
Level 1
 
Level 2
 
Level 3
 
Subtotal
 
Assets
 
Total
Equity securities and funds
  
$
26.2

 
$
—

 
$
—

 
$
26.2

 
$
44.8

 
$
71.0

Fixed income securities and funds
  
164.0

 
—

 
5.3

 
169.3

 
46.3

 
215.6

Cash and other
  
4.7

 
217.8

 
13.5

 
236.0

 
42.7

 
278.7

Total
  
$
194.9

 
$
217.8

 
$
18.8

 
$
431.5

 
$
133.8

 
$
565.3

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
December 31, 2015
 
 
Fair Value Measurements
 
NAV-Based
 
 
Asset Category
  
Level 1
 
Level 2
 
Level 3
 
Subtotal
 
Assets
 
Total
Equity securities and funds
  
$
70.0

 
$
—

 
$
—

 
$
70.0

 
$
34.4

 
$
104.4

Fixed income securities and funds
  
—

 
96.2

 
—

 
96.2

 
81.5

 
177.7

Cash and other
  
3.5

 
207.4

 
0.6

 
211.5

 
66.7

 
278.2

Total
  
$
73.5

 
$
303.6

 
$
0.6

 
$
377.7

 
$
182.6

 
$
560.3
Schedule of Effect of Significant Unobservable Inputs, Changes in Plan Assets [Table Text Block]
A reconciliation of the change in the fair value measurement of the defined benefit plans’ consolidated assets using significant unobservable inputs (Level 3) for 2016 and 2015 is as follows (in millions):
 
Total
Fair value as of December 31, 2014
$
68.3

Realized gains
5.2

Unrealized (losses) gains
(4.9
)
Purchases, sales, settlements, and other, net
(41.7
)
Fair value as of December 31, 2015
$
26.9

Acquisitions
73.6

Realized gains
2.2

Unrealized losses
(0.6
)
Purchases, sales, settlements and other, net
(20.8
)
Fair value as of December 31, 2016
$
81.3
Other Postretirement Benefit Plans, Defined Benefit [Member]  
Defined Benefit Plan Disclosure [Line Items]  
Schedule of Changes in Projected Benefit Obligations [Table Text Block]
 
2016
 
2015
Change in benefit obligation:
 
 
 
Benefit obligation at beginning of year
$
67.9

 
$
88.1

Service cost
0.1

 
0.3

Interest cost
2.2

 
3.4

Actuarial loss (gain)
3.0

 
(18.3
)
Benefits paid, net
(6.1
)
 
(5.6
)
Acquisitions
7.2

 
—

Changes in plan benefits
0.3

 
—

Benefit obligation at end of year
$
74.6

 
$
67.9

Funded status and net liability recognized at end of year
$
(74.6
)
 
$
(67.9
)
 
 
 
 
Amounts recognized in the Consolidated Balance Sheets:
 

 
 

Accrued current benefit cost, included in other accrued liabilities
$
(6.4
)
 
$
(5.8
)
Accrued noncurrent benefit cost, included in other noncurrent liabilities
(68.2
)
 
(62.1
)
Total
$
(74.6
)
 
$
(67.9
)
Schedule of Assumptions Used [Table Text Block]
 
2016
 
2015
Assumptions:
 
 
 
Weighted-average assumptions used to determine benefit obligation:
 
 
 
Discount rate
3.75
%
 
4.00
%
Current health care cost trend rate
8.67
%
 
8.70
%
Ultimate health care cost trend rate
4.50
%
 
4.50
%
Schedule Of Company's Pension Cost And Supplemental Retirement Plans
Postretirement benefit costs include the following components for the years ended December 31, (in millions):
 
2016
 
2015
 
2014
Service cost
$
0.1

 
$
0.3

 
$
1.0

Interest cost
2.2

 
3.4

 
4.8

Amortization of:
 
 
 
 
 
Prior service benefit
(5.2
)
 
(6.6
)
 
(6.4
)
Actuarial (gain) loss
(5.2
)
 
(1.2
)
 
—

Net postretirement benefit (income) expense
$
(8.1
)
 
$
(4.1
)
 
$
(0.6
)
Schedule of Assumptions Used, Periodic Benefit Cost [Table Text Block]
 
2016
 
2015
 
2014
Assumptions:
 
 
 
 
 
Weighted-average assumptions used to determine net periodic benefit cost:
 
 
 
 
 
Effective discount rate for benefits obligations
3.97
%
 
4.00
%
 
4.50
%
Effective rate for interest on benefit obligations
3.10
%
 
4.00
%
 
4.50
%
Effective rate for service cost
3.46
%
 
4.00
%
 
4.50
%
Effective rate for interest on service cost
3.19
%
 
4.00
%
 
4.50
%