Retirement Plans (Tables)

12 Months Ended

Dec. 31, 2011

Components Of The Net Periodic Benefit Expense (Income) And Total Expense (Income)

	Pension Benefits									Postretirement Benefits
	2011			2010			2009			2011			2010			2009
Service cost	$	86.6		$	80.4		$	70.1		$	8.2		$	12.2		$	10.3
Interest cost		192.0			184.0			177.6			22.7			28.4			31.0
Expected return on plan assets		(266.4	)		(258.7	)		(256.2	)		(14.8	)		(15.5	)		(15.5	)
Amortization of prior service credit		(4.4	)		(1.9	)		(5.3	)		(12.5	)		(10.8	)		(14.6	)
Amortization of actuarial loss		50.1			29.7			8.9			0.1			1.3			(2.6	)
Curtailments		(38.7	)		(0.4	)		—			—			—			—
Net periodic benefit expense (income)		19.2			33.1			(4.9	)		3.7			15.6			8.6
Weighted average assumption used to calculate net periodic benefit expense:
Discount rate		5.5	%		6.0	%		6.8	%		5.2	%		5.7	%		6.9	%
Rate of compensation increase		4.0	%		4.0	%		4.0	%		3.6	%		4.0	%		4.0	%
Expected return on plan assets		8.4	%		8.3	%		8.3	%		7.6	%		7.6	%		8.0	%

Reconciliation Of The Benefit Obligation, Plan Assets And The Funded Status Of The Plans

	Pension Benefits						Postretirement Benefits
	2011			2010			2011			2010
Benefit obligation at beginning of year	$	3,583.1		$	3,168.1		$	490.3		$	513.7
Service cost		86.6			80.4			8.2			12.2
Interest cost		192.0			184.0			22.7			28.4
Plan participants' contributions		1.2			1.2			17.8			16.8
Medicare reimbursements		—			—			3.3			3.3
Acquisitions and other		—			167.2			—			1.2
Actuarial loss (gain)		306.4			133.8			(22.5	)		(39.8	)
Plan amendments		(0.5	)		3.3			(72.4	)		—
Curtailments and settlements		(61.6	)		(0.4	)		—			—
Foreign currency translation		(5.4	)		4.3			(0.8	)		1.8
Benefits paid		(178.2	)		(158.8	)		(43.5	)		(47.3	)
Benefit obligation at end of year	$	3,923.6		$	3,583.1		$	403.1		$	490.3
Fair value of plan assets at beginning of year	$	3,029.6		$	2,654.4		$	191.9		$	182.6
Actual return on assets		(44.4	)		394.5			(4.7	)		26.5
Acquisitions and other		—			98.0			—			—
Employer contributions		44.7			38.8			13.2			13.3
Plan participants' contributions		1.2			1.2			17.8			16.8
Foreign currency translation		(3.3	)		1.5			—			—
Benefits paid		(178.2	)		(158.8	)		(43.5	)		(47.3	)
Fair value of plan assets at end of year	$	2,849.6		$	3,029.6		$	174.7		$	191.9
Funded status at end of year	$	(1,074.0	)	$	(553.5	)	$	(228.4	)	$	(298.4	)

Amounts Recognized On The Consolidated Balance Sheets

	Pension Benefits						Postretirement Benefits
	2011			2010			2011			2010
Prepaid pension cost (included in other noncurrent assets)	$	9.5		$	4.4		$	—		$	—
Accrued benefit cost (included in accrued liabilities)		(7.2	)		(24.9	)		(1.1	)		(11.0	)
Pension liability		(1,076.3	)		(533.0	)		—			—
Postretirement benefits		—			—			(227.3	)		(287.4	)
Net liability recognized in the consolidated balance sheets	$	(1,074.0	)	$	(553.5	)	$	(228.4	)	$	(298.4	)

Amounts In Accumulated Other Comprehensive (Income) Loss

	Pension Benefits					Postretirement Benefits
	2011		2010			2011			2010
Accumulated other comprehensive loss (income)
Net actuarial loss (gain)	$	1,574.3	$	1,069.4		$	(9.1	)	$	(6.0	)
Net transition obligation		0.2		0.3			—			—
Net prior service credit		—		(43.1	)		(87.8	)		(27.9	)
Total	$	1,574.5	$	1,026.6		$	(96.9	)	$	(33.9	)

Schedule Of Amounts Recognized In Other Comprehensive Income (Loss)

	Pension Benefits			Postretirement Benefits
Amortization of:
Net actuarial loss	$	(109.7	)	$	(0.1	)
Net prior service credit		43.5			12.5
Amounts arising during the period:
Net actuarial loss (gain)		616.0			(3.0	)
Net prior service credit		(0.4	)		(72.4	)
Foreign currency gain		(1.5	)		—
Total	$	547.9		$	(63.0	)

Amounts In Accumulated Other Comprehensive Loss Expected To Be Recognized Next Fiscal Year

	Pension Benefits		Postretirement Benefits
Amortization of:
Net actuarial loss (gain)	$	30.2	$	(0.1	)
Net prior service credit		—		(19.7	)
Total	$	30.2	$	(19.8	)

Weighted Average Assumptions Used To Determine The Benefit Obligation

	Pension Benefits						Postretirement Benefits
	2011			2010			2011			2010
Discount rate		4.9	%		5.5	%		4.8	%		5.2	%
Rate of compensation increase		0.9	%		4.0	%		3.6	%		3.5	%
Health care cost trend:
Current
Pre-Age 65		—			—			7.0	%		7.8	%
Post-Age 65		—			—			7.0	%		7.8	%
Ultimate		—			—			5.9	%		6.0	%

Schedule Of Benefit Obligations In Excess Of Fair Value Of Plan Assets

	Pension Benefits
	2011		2010
Projected benefit obligation	$	3,906.7	$	3,561.9
Fair value of plan assets		2,823.2		3,004.0

Schedule Of Accumulated Benefit Obligations In Excess Of Fair Value Of Plan Assets

	Pension Benefits
	2011		2010
Accumulated benefit obligation	$	3,881.6	$	3,490.2
Fair value of plan assets		2,818.7		3,001.8

Effects Of One-Percentage Point Change In Assumed Health Care Cost Trend Rates

	1.0% Increase		1.0% Decrease
Postretirement benefit obligation	$	5.2	$	(4.9	)
Total postretirement service and interest cost components		0.5		(0.5	)

Schedule Of Expected Benefit Payments

	Pension Benefits		Postretirement Benefits-Gross		Estimated Medicare Subsidy Reimbursements
2012	$	180.9	$	32.8	$	1.5
2013		185.4		31.4		—
2014		188.6		31.2		—
2015		193.1		30.9		—
2016		198.9		30.8		—
2017-2021		1,131.7		145.3		—

Summary Of Changes In The Fair Value Of Level Three Assets

	Private Equity
Balance at January 1, 2010	$	6.9
Unrealized losses—net		(0.3	)
Purchases, sales and settlements		8.9
Balance at December 31, 2010	$	15.5
Unrealized gains—net		3.2
Purchases, sales and settlements		11.4
Balance at December 31, 2011	$	30.1

Pension Benefits [Member]

Schedule Of Allocation Of Plan Assets

	December 31, 2011								December 31, 2010
Asset Category	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	65.2	$	43.4	$	21.8	$	—	$	13.4	$	13.4	$	—	$	—
Equity		1,857.0		1,604.4		252.6		—		2,065.0		1,683.3		381.7		—
Fixed income		779.1		214.8		564.3		—		841.6		213.7		627.9		—
Derivatives and other		6.9		3.6		3.3		—		5.3		2.1		3.2		—
Real estate		111.3		7.1		104.2		—		88.8		6.9		81.9		—
Private equity		30.1		—		—		30.1		15.5		—		—		15.5
Total	$	2,849.6	$	1,873.3	$	946.2	$	30.1	$	3,029.6	$	1,919.4	$	1,094.7	$	15.5

Postretirement Benefits [Member]

Schedule Of Allocation Of Plan Assets

	December 31, 2011								December 31, 2010
Asset Category	Total		Level 1		Level 2		Level 3		Total		Level 1		Level 2		Level 3
Cash and cash equivalents	$	17.7	$	—	$	17.7	$	—	$	4.1	$	4.1	$	—	$	—
Equity		114.3		—		114.3		—		149.4		12.4		137.0		—
Fixed income		42.7		—		42.7		—		38.2		—		38.2		—
Derivatives and other		—		—		—		—		0.2		0.2		—		—
Total	$	174.7	$	—	$	174.7	$	—	$	191.9	$	16.7	$	175.2	$	—