Employee Pension And Other Postretirement Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Defined Benefit Plan Disclosure [Line Items]
Accumulated benefit obligation for defined benefit pension plans	$ 798.5	$ 873.8
Estimated net loss to be amortized from accumulated other comprehensive earnings (loss) over the next fiscal year	0
Estimated prior service credit to be amortized from accumulated other comprehensive earnings (loss) over the next fiscal year	0.7
Defined contribution plans expense	28.3	26.0	25.6
Assumed annual rate of increase in the per capita cost of covered health care benefits for 2014	7.40%
Assumed annual rate of increase in per capita cost of covered health care benefits for 2028 and thereafter	4.50%
Defined Benefit Plan, Estimated Future Employer Contributions in Next Fiscal Year	34.0
Settlement, curtailment or termination benefit loss		7.4
France [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement, curtailment or termination benefit loss		0.5
Equity Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	40.00%
Total Debt Securities [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Target Plan Asset Allocations	60.00%
Restructuring Actions [Member]
Defined Benefit Plan Disclosure [Line Items]
Settlement, curtailment or termination benefit loss		(7.9)
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment or termination losses	0	6.7	(0.3)
Pro rata share of future postretirement benefits	806.6	883.2	817.3
Settlement, curtailment or termination benefit loss	0	6.7
Other Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Curtailment or termination losses	0	0.7	0
Pro rata share of future postretirement benefits	30.9	37.9	40.7
Settlement, curtailment or termination benefit loss	0	0.7
Other Postretirement Benefits [Member] | Benefits Payable By IBM [Member]
Defined Benefit Plan Disclosure [Line Items]
Pro rata share of future postretirement benefits	$ 13.2