General (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 03, 2015	Jun. 27, 2014	Jul. 03, 2015	Jun. 27, 2014
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (2,107.9)	$ 218.6	$ (1,433.7)	$ 214.5
Increase (decrease)	83.1	117.8	(599.0)	124.7
Income tax impact	(14.4)	(22.1)	(13.5)	(28.3)
Other comprehensive income (loss) before reclassifications, net of income taxes	68.7	95.7	(612.5)	96.4
Increase (decrease)	10.4	(13.8)	20.7	(8.5)
Income tax impact	(3.3)	5.3	(6.6)	3.4
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	7.1	(8.5)	14.1	(5.1)
Total other comprehensive income (loss), net of income taxes	75.8	87.2	(598.4)	91.3
Ending balance	(2,032.1)	305.8	(2,032.1)	305.8
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,501.6)	406.0	(821.8)	413.2
Increase (decrease)	44.8	59.1	(635.0)	51.9
Income tax impact	0.0	0.0	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	44.8	59.1	(635.0)	51.9
Increase (decrease)	0.0	0.0	0.0	0.0
Income tax impact	0.0	0.0	0.0	0.0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	0.0	0.0	0.0	0.0
Total other comprehensive income (loss), net of income taxes	44.8	59.1	(635.0)	51.9
Ending balance	(1,456.8)	465.1	(1,456.8)	465.1
Pension and Post-Retirement Plan Benefit Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(720.8)	(367.7)	(727.8)	(366.7)
Increase (decrease)	0.0	0.0	0.0	(5.5)
Income tax impact	0.0	0.0	0.0	1.1
Other comprehensive income (loss) before reclassifications, net of income taxes	0.0	0.0	0.0	(4.4)
Increase (decrease)	10.4	5.4	20.7	10.7
Income tax impact	(3.3)	(1.9)	(6.6)	(3.8)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	7.1	3.5	14.1	6.9
Total other comprehensive income (loss), net of income taxes	7.1	3.5	14.1	2.5
Ending balance	(713.7)	(364.2)	(713.7)	(364.2)
Unrealized Gain on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	114.5	180.3	115.9	168.0
Increase (decrease)	38.3	58.7	36.0	78.3
Income tax impact	(14.4)	(22.1)	(13.5)	(29.4)
Other comprehensive income (loss) before reclassifications, net of income taxes	23.9	36.6	22.5	48.9
Increase (decrease)	0.0	(19.2)	0.0	(19.2)
Income tax impact	0.0	7.2	0.0	7.2
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	0.0	(12.0)	0.0	(12.0)
Total other comprehensive income (loss), net of income taxes	23.9	24.6	22.5	36.9
Ending balance	$ 138.4	$ 204.9	$ 138.4	$ 204.9