Pension Benefit Plans (Narrative) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2009
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	8.00%	8.00%	8.00%
Weighted average rate of return assumption	4.90%	5.25%
Expense for all defined benefit and defined contributions pension plans	$ 166	$ 126	$ 109
Pension Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net prior service credits, before tax	(2.0)
Unrecognized net prior service credits, net of tax	(2.0)
Unrecognized actuarial losses, before tax	(757.0)
Unrecognized actuarial losses, net of tax	(494.0)
U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	132.0
Expected employer contributions within the next year	50
Percentage of plan assets in equity portfolios, minimum	60.00%
Percentage of plan assets in equity portfolios, maximum	70.00%
Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	45.0
2012 Expected Rate Of Return [Member] | Pension Benefit Plans [Member]
Defined Benefit Plan Disclosure [Line Items]
Prior service credits expected to be recognized accumulated comprehensive income in net periodic pension cost, before tax	0.2
Prior service credits expected to be recognized accumulated comprehensive income in net periodic pension cost, net of tax	0.1
Actuarial loss expected to be recognized accumulated comprehensive income in net periodic pension cost, before tax	43
Actuarial loss expected to be recognized accumulated comprehensive income in net periodic pension cost, net of tax	28
2012 Expected Rate Of Return [Member] | U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	7.50%
Change In Pension Benefit Obligation [Member] | U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(120.3)	(89.0)
Change In Pension Benefit Obligation [Member] | Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Benefits paid	(38.8)	(35.5)
Change In Plan Assets [Member] | U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	131.9	90.5
Benefits paid	(120.3)	(89.0)
Change In Plan Assets [Member] | Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Employer contributions	45.4	32.7
Benefits paid	$ (38.8)	$ (35.5)
Minimum [Member] | Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	1.25%	1.25%
Maximum [Member] | Non-U.S. Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
Long-term rate of return on asset assumptions	7.90%	7.20%