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Net Deferred Tax Liabilities (Detail) - USD ($)
$ in Millions
Dec. 31, 2016
Dec. 31, 2015
Schedule of Deferred Income Tax Assets and Liabilities    
Property and equipment $ 1,459.8 $ 1,751.7
Unrealized foreign exchange gains 630.9 455.6
Intangible liabilities 445.2 464.7
Other 287.6 268.5
Deferred Tax Liabilities, Gross 2,823.5 2,940.5
Property and equipment (650.2) (472.7)
Employee benefit plans (395.0) (390.1)
Intangible assets (170.7) (222.6)
Deferred foreign tax credits (316.8) (289.2)
Operating loss carryforwards (292.7) (419.8)
Other (338.6) (297.0)
Total deferred tax assets before valuation allowance (2,164.0) (2,091.4)
Valuation allowance 168.0 322.4
Deferred Tax Liabilities, Net 827.5 1,171.5
Balance sheet presentation: [Abstract]    
Deferred income taxes 1,817.1 1,704.3
Other assets-miscellaneous    
Balance sheet presentation: [Abstract]    
Deferred tax assets (804.0) (532.8)
Disposal Group, Held-for-sale, Not Discontinued Operations [Member]    
Balance sheet presentation: [Abstract]    
Deferred tax assets $ (185.6) $ 0.0