General (Components of Accumulated Other Comprehensive Income) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 01, 2016	Jul. 03, 2015	Jul. 01, 2016	Jul. 03, 2015
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	$ (2,236.5)	$ (2,107.9)	$ (2,311.2)	$ (1,433.7)
Increase (decrease)	(159.6)	83.1	54.1	(599.0)
Income tax impact	(0.9)	(14.4)	(5.6)	(13.5)
Other comprehensive income (loss) before reclassifications, net of income taxes	(160.5)	68.7	48.5	(612.5)
Increase (decrease)	8.6	10.4	(207.0)	20.7
Income tax impact	(2.8)	(3.3)	78.5	(6.6)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	5.8	7.1	(128.5)	14.1
Total other comprehensive income (loss), net of income taxes	(154.7)	75.8	(80.0)	(598.4)
Ending balance	(2,391.2)	(2,032.1)	(2,391.2)	(2,032.1)
Foreign Currency Translation Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(1,596.3)	(1,501.6)	(1,797.4)	(821.8)
Increase (decrease)	(161.9)	44.8	39.2	(635.0)
Income tax impact	0.0	0.0	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	(161.9)	44.8	39.2	(635.0)
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	(161.9)	44.8	39.2	(635.0)
Ending balance	(1,758.2)	(1,456.8)	(1,758.2)	(1,456.8)
Pension and Postretirement Plan Benefit Adjustments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	(642.0)	(720.8)	(647.3)	(727.8)
Increase (decrease)	0.0	0.0	0.0	0.0
Income tax impact	0.0	0.0	0.0	0.0
Other comprehensive income (loss) before reclassifications, net of income taxes	0.0	0.0	0.0	0.0
Increase (decrease)	8.6	10.4	16.4	20.7
Income tax impact	(2.8)	(3.3)	(5.3)	(6.6)
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	5.8	7.1	11.1	14.1
Total other comprehensive income (loss), net of income taxes	5.8	7.1	11.1	14.1
Ending balance	(636.2)	(713.7)	(636.2)	(713.7)
Unrealized Gain (Loss) on Available-For-Sale Securities
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Beginning balance	1.8	114.5	133.5	115.9
Increase (decrease)	2.3	38.3	14.9	36.0
Income tax impact	(0.9)	(14.4)	(5.6)	(13.5)
Other comprehensive income (loss) before reclassifications, net of income taxes	1.4	23.9	9.3	22.5
Increase (decrease)	0.0	0.0	(223.4)	0.0
Income tax impact	0.0	0.0	83.8	0.0
Amounts reclassified from accumulated other comprehensive income (loss), net of income taxes	0.0	0.0	(139.6)	0.0
Total other comprehensive income (loss), net of income taxes	1.4	23.9	(130.3)	22.5
Ending balance	$ 3.2	$ 138.4	$ 3.2	$ 138.4