Equity

6 Months Ended

Jun. 30, 2017

Equity [Abstract]

Equity

14. Equity

Share Repurchases

On November 19, 2015, the Company's Board of Directors authorized a $500.0 million share repurchase program (the "November 2015 Program"), which was completed in the three months ended December 30, 2016. On March 16, 2016, the Company's Board of Directors authorized an additional $350.0 million share repurchase program (the "March 2016 Program"), which was completed during the three months ended March 31, 2017. On March 1, 2017, the Company's Board of Directors authorized an additional $1.0 billion share repurchase program (the "March 2017 Program"), which commenced upon the completion of the March 2016 Program. The March 2017 Program has no time limit or expiration date, and the Company currently expects to fully utilize the program.

	March 2017 Repurchase Program			March 2016 Repurchase Program			November 2015 Repurchase Program
	Number of Shares	Amount		Number of Shares	Amount		Number of Shares	Amount
Authorized repurchase amount		$	1,000.0		$	350.0		$	500.0
Repurchases:
Fiscal 2016 (1)	—	—		—	—		6,510,824	425.6
Transition Period 2016	—	—		1,501,676	84.0		1,063,337	74.4
Fiscal 2017	2,594,703	110.3		5,366,741	266.0		—	—
Remaining amount available		$	889.7		$	—		$	—

(1) Represents the Company's historical fiscal year ending on the last Friday in September.

The Company also repurchases shares from employees in order to satisfy employee tax withholding requirements in connection with the vesting of restricted shares and share option exercises.