Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2017

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The derivative assets and liabilities measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 were as follows:

	June 30, 2017		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Derivatives:
Foreign currency forward contracts (asset position)		$15.4		$—		$15.4		$—
Foreign currency forward contracts (liability position)		$34.4		$—		$34.4		$—

	December 31, 2016		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Derivatives:
Foreign currency forward contracts (asset position)		$5.6		$—		$5.6		$—
Foreign currency forward contracts (liability position)		$49.0		$—		$49.0		$—

Investments [Member]

Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]

Fair Value, Assets Measured on Recurring and Nonrecurring Basis [Table Text Block]

The assets measured at fair value on a recurring basis as of June 30, 2017 and December 31, 2016 were as follows:

	June 30, 2017		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment securities:
Mutual funds		$11.6		$11.6		$—		$—
Money market accounts	0.6		0.6		—		—
Total		$12.2		$12.2		$—		$—

	December 31, 2016		Quoted Prices In Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Investment securities:
Mutual funds		$10.5		$10.5		$—		$—
Convergys common stock	1.3		1.3		—		—
Money market accounts	0.6		0.6		—		—
Total		$12.4		$12.4		$—		$—