Net Periodic Benefit Cost (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2011
Components of Net Periodic Benefit Cost
Anticipated contributions to defined benefit pension plans in the current fiscal year	$ 33		$ 33
US Plans
Components of Net Periodic Benefit Cost
Service cost	1.6	1.7	3.3	3.4
Interest cost	2.9	3.1	5.9	6.3
Expected return on plan assets	(4.0)	(3.7)	(8.1)	(7.2)
Amortization of net actuarial loss	0.6	0.4	1.1	0.7
Amortization of prior service cost		0.1		0.1
Net periodic benefit cost	1.1	1.6	2.2	3.3
Anticipated contributions to defined benefit pension plans in the current fiscal year	19		19
Cash contributions to defined benefit pension plan			1
Non-US Plans
Components of Net Periodic Benefit Cost
Service cost	2.0	1.2	4.0	2.5
Interest cost	3.0	3.0	6.1	5.9
Expected return on plan assets	(2.7)	(2.9)	(5.4)	(5.6)
Amortization of net actuarial loss	1.0	0.6	1.9	1.2
Amortization of prior service cost		0.1		0.1
Amortization of transition obligation	0.1	0.2	0.2	0.3
Net periodic benefit cost	3.4	2.2	6.8	4.4
Anticipated contributions to defined benefit pension plans in the current fiscal year	14		14
Cash contributions to defined benefit pension plan			7
Postretirement Benefit Plans
Components of Net Periodic Benefit Cost
Service cost	0.6	0.7	1.2	1.5
Interest cost	0.8	1.2	1.7	2.5
Amortization of net actuarial loss	0.1	0.2	0.2	0.4
Amortization of prior service cost	0.1	0.1	0.1	0.1
Net periodic benefit cost	$ 1.6	$ 2.2	$ 3.2	$ 4.5