General (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2016	Apr. 03, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (2,311.2)	$ (1,433.7)
Increase (decrease)	213.7	(682.1)
Income tax impact	(4.7)	0.9
Other comprehensive income (loss) before reclassifications, net of income taxes	209.0	(681.2)
Increase (decrease)	(215.6)	10.3
Income tax impact	81.3	(3.3)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	(134.3)	7.0
Total other comprehensive income (loss), net of income taxes	74.7	(674.2)
Ending balance	(2,236.5)	(2,107.9)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,797.4)	(821.8)
Increase (decrease)	201.1	(679.8)
Income tax impact	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	201.1	(679.8)
Increase (decrease)	0.0	0.0
Income tax impact	0.0	0.0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	0.0	0.0
Total other comprehensive income (loss), net of income taxes	201.1	(679.8)
Ending balance	(1,596.3)	(1,501.6)
Pension and Postretirement Plan Benefit Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(647.3)	(727.8)
Increase (decrease)	0.0	0.0
Income tax impact	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	0.0	0.0
Increase (decrease)	7.8	10.3
Income tax impact	(2.5)	(3.3)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	5.3	7.0
Total other comprehensive income (loss), net of income taxes	5.3	7.0
Ending balance	(642.0)	(720.8)
Unrealized Gain (Loss) on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	133.5	115.9
Increase (decrease)	12.6	(2.3)
Income tax impact	(4.7)	0.9
Other comprehensive income (loss) before reclassifications, net of income taxes	7.9	(1.4)
Increase (decrease)	(223.4)	0.0
Income tax impact	83.8	0.0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	(139.6)	0.0
Total other comprehensive income (loss), net of income taxes	(131.7)	(1.4)
Ending balance	$ 1.8	$ 114.5