Restructuring (Tables)

6 Months Ended

Nov. 30, 2014

Restructuring and Related Activities [Abstract]

Summary of severance and benefit costs

(in millions)	Restructuring Costs
Restructuring Accrual:
Balance at May 31, 2014	$	42.5
Costs incurred and charged to expense	1.8
Costs paid or otherwise settled	(21.0		)
Non-cash adjustments(1)	(0.2		)
Balance at August 31, 2014	23.1
Costs incurred and charged to expense	3.2
Costs paid or otherwise settled	(2.5		)
Non-cash adjustments(1)	—
Balance at November 30, 2014	$	23.8

(1) Primarily related to foreign currency fluctuations.

(in millions)	Restructuring Costs
Restructuring Accrual:
Balance at May 31, 2013	$	8.9
Costs incurred and charged to expense	6.3
Costs paid or otherwise settled	(5.3		)
Non-cash adjustments(1)	0.7
Balance at August 31, 2013	10.6
Costs incurred and charged to expense	5.9
Costs paid or otherwise settled	(3.9		)
Non-cash adjustments(1)	0.8
Balance at November 30, 2013	$	13.4

(1) Primarily related to foreign currency fluctuations.