Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions		6 Months Ended	12 Months Ended
		Dec. 31, 2015	Dec. 31, 2017	Dec. 31, 2016	Jun. 27, 2015
Statement of Comprehensive Income [Abstract]
Net income (loss)		$ 42.5	$ 119.6	$ (4,012.8)	$ 136.1
Other comprehensive income:
Foreign currency translation adjustments		(135.5)	328.5	(63.3)	(33.5)
Change in fair value of derivative financial instruments	[1]	2.1	9.7	(5.3)	(0.2)
Change in fair value of investment securities	[2]	9.3	(14.1)	8.7	(5.3)
Change in post-retirement and pension liability	[3]	5.3	10.8	(6.6)	2.9
Other comprehensive income (loss), net of tax		(118.8)	334.9	(66.5)	(36.1)
Comprehensive income (loss)		(76.3)	454.5	(4,079.3)	100.0
Other Comprehensive Income (Loss), Tax [Abstract]
Derivatives qualifying as hedges benefit (expense), tax, portion attributable to parent		(0.4)	(3.5)	2.1	5.7
Available for sale securities benefit (expense), tax		(3.6)	0.5	(4.1)	2.7
Pension and other postretirement benefit (expense) plans, tax		$ (2.8)	$ 0.0	$ 2.5	$ (0.6)

[1] Includes tax effect of $3.5 million, $2.1 million, $0.4 million and $5.7 million for the years ended December 31, 2017, December 31, 2016, the six months ended December 31, 2015, and the year ended June 27, 2015, respectively.

[2] Includes tax effect of $0.5 million, $4.1 million, $3.6 million and $2.7 million for the years ended December 31, 2017, December 31, 2016, the six months ended December 31, 2015, and the year ended June 27, 2015, respectively.

[3] Includes tax effect of $0.0 million, $2.5 million, $2.8 million and $0.6 million for the years ended December 31, 2017, December 31, 2016, the six months ended December 31, 2015, and the year ended June 27, 2015, respectively.