XML 82 R99.htm IDEA: XBRL DOCUMENT v2.4.1.9
Long-Term Debt (Schedule Of Outstanding Long Term Debt Sinking Fund Requirements And Maturities) (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Long-term Debt, Current and Noncurrent [Abstract]  
2015 $ 266.6us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInNextTwelveMonths
2016 757.5us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearTwo
2017 1,350.3us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearThree
2018 811.1us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFour
2019 552.6us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalInYearFive
After 4,734.3us-gaap_LongTermDebtMaturitiesRepaymentsOfPrincipalAfterYearFive
Total long-term debt 8,472.4us-gaap_LongTermDebt [1]
Unamortized discount and premium $ 49.9ni_UnamortizedDiscountAndPremium
[1] This amount excludes $49.9 million of unamortized discount and premium.