Changes in Pension and Other Post-Retirement Benefit Obligations, Fair Value Of Plan Assets, as well as Amounts Recognized in the Consolidated Balance Sheets (Detail) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Jan. 01, 2011	Jan. 02, 2010
Amounts recognized in the Consolidated Balance Sheets
Non-current benefit liability	$ (724.1)	$ (642.4)
Pension Benefit, U.S. Plans
Change in benefit obligation
Benefit obligation at end of prior year	1,390.5	176.1
Service cost	6.5	18.1	2.6
Interest cost	69.6	61.2	9.8
Settlements/curtailments	(44.1)	(65.6)
Actuarial (gain) loss	161.9	81.6
Plan amendments	0.1	2.0
Acquisitions, divestitures and other	4.1	1,181.7
Benefits paid	(87.6)	(64.6)
Benefit obligation at end of year	1,501.0	1,390.5	176.1
Change in plan assets
Fair value of plan assets at end of prior year	1,032.1	108.7
Actual return on plan assets	99.2	86.9
Employer contributions	83.6	212.6
Settlements	(44.1)
Acquisitions, divestitures and other	(3.7)	688.5
Benefits paid	(87.6)	(64.6)
Fair value of plan assets at end of plan year	1,079.5	1,032.1	108.7
Funded status - assets less than benefit obligation	(421.5)	(358.4)
Unrecognized prior service cost (credit)	4.5	5.4
Unrecognized net actuarial loss	153.3	24.9
Net amount recognized	(263.7)	(328.1)
Amounts recognized in the Consolidated Balance Sheets
Prepaid benefit cost (non-current)		0.2
Current benefit liability	(20.2)	(56.9)
Non-current benefit liability	(401.3)	(301.7)
Net liability recognized	(421.5)	(358.4)
Accumulated other comprehensive loss (pre-tax):
Prior service cost (credit)	4.5	5.4
Actuarial loss	153.3	24.9
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax, Total	157.8	30.3
Net amount recognized	(263.7)	(328.1)
Pension Benefit, Non-U.S Plans
Change in benefit obligation
Benefit obligation at end of prior year	987.1	256.6
Service cost	12.6	12.8	3.8
Interest cost	52.9	44.7	13.3
Settlements/curtailments	(3.1)	(14.1)
Actuarial (gain) loss	(23.0)	13.0
Plan amendments	2.8	3.3
Foreign currency exchange rates	(13.8)	9.3
Participant contributions	0.3	0.8
Acquisitions, divestitures and other	0.3	706.6
Benefits paid	(50.4)	(45.9)
Benefit obligation at end of year	965.7	987.1	256.6
Change in plan assets
Fair value of plan assets at end of prior year	719.1	210.8
Actual return on plan assets	19.4	51.2
Participant contributions	0.3	0.8
Employer contributions	35.6	52.4
Settlements	(2.7)	(7.3)
Foreign currency exchange rate changes	(8.3)	11.0
Acquisitions, divestitures and other	(3.6)	446.1
Benefits paid	(50.4)	(45.9)
Fair value of plan assets at end of plan year	709.4	719.1	210.8
Funded status - assets less than benefit obligation	(256.3)	(268.0)
Unrecognized prior service cost (credit)	5.6	3.3
Unrecognized net actuarial loss	75.1	70.9
Unrecognized net transition obligation	0.3	0.4
Net amount recognized	(175.3)	(193.4)
Amounts recognized in the Consolidated Balance Sheets
Prepaid benefit cost (non-current)	4.0	4.8
Current benefit liability	(8.0)	(8.1)
Non-current benefit liability	(252.3)	(264.7)
Net liability recognized	(256.3)	(268.0)
Accumulated other comprehensive loss (pre-tax):
Prior service cost (credit)	5.6	3.3
Actuarial loss	75.1	70.9
Transition liability	0.3	0.4
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax, Total	81.0	74.6
Net amount recognized	(175.3)	(193.4)
Other Postretirement Benefit Plans, Defined Benefit
Change in benefit obligation
Benefit obligation at end of prior year	86.9	23.0
Service cost	0.6	1.3	0.8
Interest cost	3.6	4.6	1.3
Settlements/curtailments	(0.9)	(11.0)
Actuarial (gain) loss	0.2	3.9
Plan amendments	0.7	(13.9)
Foreign currency exchange rates	(0.2)	0.2
Acquisitions, divestitures and other	0.1	90.4
Benefits paid	(10.9)	(11.6)
Benefit obligation at end of year	80.1	86.9	23.0
Change in plan assets
Employer contributions	11.8	11.6
Settlements	(0.9)
Benefits paid	(10.9)	(11.6)
Funded status - assets less than benefit obligation	(80.1)	(86.9)
Unrecognized prior service cost (credit)	(12.7)	(14.6)
Unrecognized net actuarial loss	1.7	1.4
Net amount recognized	(91.1)	(100.1)
Amounts recognized in the Consolidated Balance Sheets
Current benefit liability	(9.6)	(10.5)
Non-current benefit liability	(70.5)	(76.4)
Net liability recognized	(80.1)	(86.9)
Accumulated other comprehensive loss (pre-tax):
Prior service cost (credit)	(12.7)	(14.6)
Actuarial loss	1.7	1.4
Pension and Other Postretirement Benefit Plans, Accumulated Other Comprehensive Income (Loss), before Tax, Total	(11.0)	(13.2)
Net amount recognized	$ (91.1)	$ (100.1)