Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended
	Apr. 01, 2017	Apr. 02, 2016
Reclassification Adjustment out of Accumulated Other Comprehensive Income on (Loss) Derivatives [Line Items]
Balance at December 31, 2016	$ (81.8)
OCI before reclassifications	53.8
Amounts reclassified from AOCI	1.7
Other comprehensive income, net of tax	55.5	$ 152.7
Balance at April 1, 2017	(26.3)
Foreign currency translation adjustments
Reclassification Adjustment out of Accumulated Other Comprehensive Income on (Loss) Derivatives [Line Items]
Balance at December 31, 2016	(67.9)
OCI before reclassifications	65.4
Amounts reclassified from AOCI	0.0
Other comprehensive income, net of tax	65.4
Balance at April 1, 2017	(2.5)
Fair value of derivative financial instruments, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income on (Loss) Derivatives [Line Items]
Balance at December 31, 2016	(19.5)
OCI before reclassifications	1.5
Amounts reclassified from AOCI	0.1
Other comprehensive income, net of tax	1.6
Balance at April 1, 2017	(17.9)
Fair value of investment securities, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income on (Loss) Derivatives [Line Items]
Balance at December 31, 2016	15.1
OCI before reclassifications	(13.0)
Amounts reclassified from AOCI	1.6
Other comprehensive income, net of tax	(11.4)
Balance at April 1, 2017	3.7
Post-retirement and pension liability adjustments, net of tax
Reclassification Adjustment out of Accumulated Other Comprehensive Income on (Loss) Derivatives [Line Items]
Balance at December 31, 2016	(9.5)
OCI before reclassifications	(0.1)
Amounts reclassified from AOCI	0.0
Other comprehensive income, net of tax	(0.1)
Balance at April 1, 2017	$ (9.6)