General General (Components of Accumulated Other Comprehensive Income) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 28, 2013	Jun. 29, 2012	Jun. 28, 2013	Jun. 29, 2012
Accumulated Other Comprehensive Income Loss Total [Roll Forward]
Beginning balance	$ (268.0)	$ 154.5	$ (59.2)	$ (36.9)
Pre-tax income (loss)		(213.5)		(1.2)
Income tax expense		(15.9)		(36.8)
Other comprehensive income (loss), net of income taxes	(110.6)	(229.4)	(319.4)	(38.0)
Ending balance	(378.6)	(74.9)	(378.6)	(74.9)
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation [Abstract]
Other comprehensive income (loss), net of income taxes, Foreign currency translation adjustments	(129.1)	(256.1)	(385.6)	(100.1)
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Pension And Other Postretirement Benefit Plans [Abstract]
Net current period other comprehensive income, net of income taxes, Pension and post-retirement plan benefit adjustments	(5.5)	(5.8)	(11.0)	(12.9)
Reclassification out of Accumulated Other Comprehensive Income [Member]
Accumulated Other Comprehensive Income Loss Total [Roll Forward]
Pre-tax income (loss)	8.4		16.8
Income tax expense	(2.9)		(5.8)
Other comprehensive income (loss), net of income taxes	5.5		11.0
Other Comprehensive Income (Loss) Before Reclassifications [Member]
Accumulated Other Comprehensive Income Loss Total [Roll Forward]
Pre-tax income (loss)	(108.2)		(297.2)
Income tax expense	(7.9)		(33.2)
Other comprehensive income (loss), net of income taxes	(116.1)		(330.4)
Foreign currency translation adjustments [Member]
Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation Adjustments [Roll Forward]
Beginning balance, Foreign currency translation adjustments	218.8	540.5	475.3	384.5
Other Comprehensive Income (Loss) Foreign Currency Translation Adjustments Before Reclassification [Abstract]
Pre-tax income (loss), Foreign currency translation adjustments		(256.1)		(100.1)
Income tax expense, Foreign currency translation adjustments		0		0
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation [Abstract]
Other comprehensive income (loss), net of income taxes, Foreign currency translation adjustments	(129.1)	(256.1)	(385.6)	(100.1)
Ending balance, Foreign currency translation adjustments	89.7	284.4	89.7	284.4
Foreign currency translation adjustments [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation [Abstract]
Pre-tax income, Foreign currency translation adjustments	0		0
Income tax expense, Foreign currency translation adjustments	0		0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	0		0
Foreign currency translation adjustments [Member] | Other Comprehensive Income (Loss) Before Reclassifications [Member]
Other Comprehensive Income (Loss) Foreign Currency Translation Adjustments Before Reclassification [Abstract]
Pre-tax income (loss), Foreign currency translation adjustments	(129.1)		(385.6)
Income tax expense, Foreign currency translation adjustments	0		0
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Foreign Currency Translation [Abstract]
Other comprehensive income (loss), net of income taxes, Foreign currency translation adjustments	(129.1)		(385.6)
Pension and Post-Retirement Plan Benefit [Member]
Changes In Accumulated Other Comprehensive Income Loss By Component Table [Line Items]
Pre-tax income (loss)		9.2		20.3
Accumulated Other Comprehensive Income Defined Benefit Plans Adjustment [Roll Forward]
Beginning balance, Pension and post-retirement plan benefit adjustments	(650.2)	(508.9)	(655.7)	(516.0)
Other Comprehensive Income (Loss) Pension And Post-Retirement Plan Benefit Adjustments Before Reclassification [Abstract]
Income tax epxpense, Pension and post-retirement plan benefit adjustments		(3.4)		(7.4)
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Pension And Other Postretirement Benefit Plans [Abstract]
Net current period other comprehensive income, net of income taxes, Pension and post-retirement plan benefit adjustments	5.5	5.8	11.0	12.9
Ending balance, Pension and post-retirement plan benefit adjustments	(644.7)	(503.1)	(644.7)	(503.1)
Pension and Post-Retirement Plan Benefit [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Pension And Other Postretirement Benefit Plans [Abstract]
Pre-tax income, Pension and post-retirement plan benefit adjustments	8.4		16.8
Income tax expense, Pension and post-retirement plan benefit adjustments	(2.9)		(5.8)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes, Pension and post-retirement plan benefit adjustments	5.5		11.0
Pension and Post-Retirement Plan Benefit [Member] | Other Comprehensive Income (Loss) Before Reclassifications [Member]
Other Comprehensive Income (Loss) Pension And Post-Retirement Plan Benefit Adjustments Before Reclassification [Abstract]
Pre-tax income (loss), Pension and post-retirement plan benefit adjustments	0		0
Income tax expense, Pension and post-retirement plan benefit adjustments	0		0
Other comprehensive income (loss) before reclassifications, net of income taxes, Pension and post-retirement plan benefit adjustments	0		0
Unrealized gain on available-for sale securities [Member]
Changes In Accumulated Other Comprehensive Income Loss By Component Table [Line Items]
Pre-tax income (loss)		33.4		78.6
Accumulated Other Comprehensive Income Loss Available For Sale Securities Adjustment [Roll Forward]
Beginning balance, Unrealized gain onavailable-for-sale securities	163.4	122.9	121.2	94.6
Other Comprehensive Income (Loss) Unrealized Gain On Available For Sale Securities Adjustments Before Reclassification [Abstract]
Income tax expense, Unrealized gain onavailable-for-sale securities		(12.5)		(29.4)
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Unrealized Gain On Available For Sale Securities [Abstract]
Net current period other comprehensive income, net of income taxes, Unrealized gain onavailable-for-sale securities	13.0	20.9	55.2	49.2
Ending balance, Unrealized gain onavailable-for-sale securities	176.4	143.8	176.4	143.8
Unrealized gain on available-for sale securities [Member] | Reclassification out of Accumulated Other Comprehensive Income [Member]
Amounts Reclassified From Accumulated Other Comprehensive Income (Loss) Unrealized Gain On Available For Sale Securities [Abstract]
Pre-tax income, Unrealized gain onavailable-for-sale securities	0		0
Income tax expense, Unrealized gain onavailable-for-sale securities	0		0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes, Unrealized gain onavailable-for-sale securities	0		0
Unrealized gain on available-for sale securities [Member] | Other Comprehensive Income (Loss) Before Reclassifications [Member]
Other Comprehensive Income (Loss) Unrealized Gain On Available For Sale Securities Adjustments Before Reclassification [Abstract]
Pre-tax income (loss), Unrealized gain onavailable-for-sale securities	20.9		88.4
Income tax expense, Unrealized gain onavailable-for-sale securities	(7.9)		(33.2)
Other comprehensive income (loss) before reclassifications, net of income taxes, Unrealized gain onavailable-for-sale securities	$ 13.0		$ 55.2