Retirement Benefits (Schedule of Expected Benefit Payments, Contributions and Expense) (Details) (USD $)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan, Accumulated Benefit Obligation	$ 9,130,000,000	$ 9,460,000,000
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Accumulated Benefit Obligation	1,384,600,000	8,021,000,000
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Benefit Obligation	1,773,600,000	9,151,200,000
Defined Benefit Plan, Pension Plans with Accumulated Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets	395,400,000	6,888,600,000
Defined Benefit Plan, Plans with Benefit Obligations in Excess of Plan Assets, Aggregate Fair Value of Plan Assets	181,800,000	6,580,600,000
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(31,900,000)
Defined Benefit Plan, Effect of One Percentage Point Increase on Accumulated Postretirement Benefit Obligation	169,700,000
Defined Benefit Plan, Effect of One Percentage Point Increase on Service and Interest Cost Components	9,400,000
Defined Benefit Plan, Effect of One Percentage Point Decrease on Accumulated Postretirement Benefit Obligation	149,100,000
Defined Benefit Plan, Effect of One Percentage Point Decrease on Service and Interest Cost Components	7,600,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(515,200,000)
Defined benefit pension and retiree health benefit plans	(2,592,200,000)	128,600,000	1,240,200,000
Defined Contribution Plan, Cost Recognized	147,700,000	136,300,000	124,800,000
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	(430,900,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	(440,100,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	(453,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	(469,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	(486,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	(2,726,000,000)
Defined Benefit Plan, Service Cost	287,100,000	253,100,000	236,300,000
Defined Benefit Plan, Interest Cost	437,200,000	455,100,000	447,900,000
Defined Benefit Plan, Expected Return on Plan Assets	(701,900,000)	(684,800,000)	(685,900,000)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	3,700,000	4,200,000	8,600,000
Defined Benefit Plan, Amortization of Gains (Losses)	414,700,000	285,700,000	200,400,000
Defined Benefit Plan, Amortization of Net Gains (Losses)	277,200,000
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	3,600,000
Defined Benefit Plan, Net Periodic Benefit Cost, Total	440,800,000	313,300,000	207,300,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(1,234,700,000)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, before Tax	100,000
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax	(3,700,000)
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax	(414,700,000)
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year	280,800,000
Foreign currency translation gains (losses)	(7,700,000)
Defined benefit pension and retiree health benefit plans	1,645,500,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	(87,200,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	(90,400,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	(94,100,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	(97,400,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	(101,200,000)
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	(551,800,000)
Defined Benefit Plan, Service Cost	49,900,000	63,300,000	72,400,000
Defined Benefit Plan, Interest Cost	98,100,000	114,900,000	118,000,000
Defined Benefit Plan, Expected Return on Plan Assets	(130,700,000)	(127,200,000)	(129,400,000)
Defined Benefit Plan, Amortization of Prior Service Cost (Credit)	(35,600,000)	(39,800,000)	(42,900,000)
Defined Benefit Plan, Amortization of Gains (Losses)	100,500,000	98,400,000	88,700,000
Defined Benefit Plan, Amortization of Net Gains (Losses)	20,000,000
Defined Benefit Plan, Future Amortization of Prior Service Cost (Credit)	(31,200,000)
Defined Benefit Plan, Net Periodic Benefit Cost, Total	82,200,000	109,600,000	106,800,000
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Unamortized Gain (Loss) Arising During Period, before Tax	(877,600,000)
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Arising During Period, before Tax	4,100,000
Other Comprehensive Income (Loss), Amortization, Pension and Other Postretirement Benefit Plans, Net Prior Service Cost (Credit) Recognized in Net Periodic Benefit Cost, before Tax	35,600,000
Defined Benefit Plan, Amounts Recognized in Other Comprehensive Income (Loss), Net Gain (Loss), before Tax	(100,500,000)
Defined Benefit Plan, Amount to be Amortized from Accumulated Other Comprehensive Income (Loss) Next Fiscal Year	(11,200,000)
Foreign currency translation gains (losses)	100,000
Defined benefit pension and retiree health benefit plans	946,700,000
Other Postretirement Benefit Plans, Defined Benefit, Gross [Member]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	(94,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	(98,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	(102,300,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	(106,400,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	(111,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	(612,300,000)
Other Postretirement Benefit Plans, Defined Benefit Plans, Medicare Rebates [Member]
Defined Benefit Plan, Expected Future Benefit Payments in Year One	(6,800,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Two	(7,600,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Three	(8,200,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Four	(9,000,000)
Defined Benefit Plan, Expected Future Benefit Payments in Year Five	(9,800,000)
Defined Benefit Plan, Expected Future Benefit Payments in Five Fiscal Years Thereafter	$ (60,500,000)