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Employee Benefits (Net Periodic Cost) (Details) (USD $)
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12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2013
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Dec. 31, 2012
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Dec. 31, 2011
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| Net periodic benefit cost: | |||
| Service cost | $ 4,300,000 | $ 3,900,000 | $ 3,600,000 |
| Interest cost | 56,200,000 | 59,300,000 | 61,200,000 |
| Expected return on plan assets | (55,600,000) | (51,100,000) | (43,000,000) |
| Amortization of prior net loss | 14,800,000 | 9,000,000 | 9,600,000 |
| Net periodic pension cost | 19,700,000 | 21,100,000 | 31,400,000 |
| Other changes in plan assets and benefit obligations recognized in other comprehensive loss: | |||
| Net actuarial loss (gain) and other adjustments | (107,700,000) | 170,400,000 | 3,600,000 |
| Less amortization of prior losses | (14,800,000) | (9,000,000) | (9,600,000) |
| Total recognized in other comprehensive loss (income) | (122,500,000) | 161,400,000 | (6,000,000) |
| Total recognized in net periodic benefit cost and other comprehensive (income) loss | (102,800,000) | 182,500,000 | 25,400,000 |
| Income tax provision (benefit) related to amounts in other comprehensive income | $ 42,700,000 | $ (1,300,000) | $ 0 |