|
Retirement and Postretirement Benefits (Details) (USD $)
|
3 Months Ended |
|
Mar. 31, 2015
|
Mar. 31, 2014
|
| U.S Defined Benefit Plans [Member] |
|
|
| Components of the net periodic cost for retirement and postretirement benefits |
|
|
| Service cost |
$ 6,200,000 |
$ 5,700,000 |
| Interest cost |
4,300,000 |
4,400,000 |
| Expected return on plan assets |
(6,100,000) |
(5,500,000) |
| Amortization of prior service cost |
100,000 |
100,000 |
| Amortization of unrecognized net loss (gain) |
2,300,000 |
2,000,000 |
| Net periodic cost (benefit) recognized |
6,800,000 |
6,700,000 |
| Non-U.S Defined Benefit Plans [Member] |
|
|
| Components of the net periodic cost for retirement and postretirement benefits |
|
|
| Service cost |
2,200,000 |
1,700,000 |
| Interest cost |
3,300,000 |
3,700,000 |
| Expected return on plan assets |
(3,000,000) |
(2,700,000) |
| Amortization of prior service cost |
0 |
100,000 |
| Amortization of unrecognized net loss (gain) |
1,300,000 |
1,700,000 |
| Net periodic cost (benefit) recognized |
3,800,000 |
4,500,000 |
| Postretirement Medical Benefits [Member] |
|
|
| Components of the net periodic cost for retirement and postretirement benefits |
|
|
| Service cost |
0 |
0 |
| Interest cost |
300,000 |
300,000 |
| Expected return on plan assets |
0 |
0 |
| Amortization of prior service cost |
0 |
0 |
| Amortization of unrecognized net loss (gain) |
(100,000) |
(400,000) |
| Net periodic cost (benefit) recognized |
$ 200,000 |
$ (100,000) |