Comprehensive Income and Shareholders' Equity (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 01, 2016	Sep. 26, 2015	Oct. 01, 2016	Sep. 26, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			$ 21,350.2	$ 20,548.1
Other comprehensive income (loss) before reclassifications			(166.5)
Amounts reclassified from accumulated other comprehensive items			9.1
Total other comprehensive items	$ (72.6)	$ (291.3)	(157.4)	(601.4)
Balance	21,658.6	20,850.2	21,658.6	20,850.2
Currency Translation Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(1,776.7)
Other comprehensive income (loss) before reclassifications			(127.8)
Total other comprehensive items			(127.8)
Balance	(1,904.5)		(1,904.5)
Unrealized Gains on Available-for-Sale Investments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			1.8
Other comprehensive income (loss) before reclassifications			(1.0)
Amounts reclassified from accumulated other comprehensive items			0.7
Total other comprehensive items			(0.3)
Balance	1.5		1.5
Unrealized Losses on Hedging Instruments [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(26.6)
Other comprehensive income (loss) before reclassifications			(36.6)
Amounts reclassified from accumulated other comprehensive items			4.3
Total other comprehensive items			(32.3)
Balance	(58.9)		(58.9)
Pension and Other Postretirement Benefit Liability Adjustment [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(195.8)
Other comprehensive income (loss) before reclassifications			(1.1)
Amounts reclassified from accumulated other comprehensive items			4.1
Total other comprehensive items			3.0
Balance	(192.8)		(192.8)
Accumulated Other Comprehensive Items [Member]
Accumulated Other Comprehensive Income (Loss) [Line Items]
Balance			(1,997.3)	(1,285.0)
Total other comprehensive items			(157.4)	(601.4)
Balance	$ (2,154.7)	$ (1,886.4)	$ (2,154.7)	$ (1,886.4)