Net Earnings per Common Unit (Tables)

9 Months Ended

Sep. 30, 2013

Net Earnings per Common Unit

Schedule of calculation for net earnings per common unit

	Three months ended September 30,						Nine months ended September 30,
	2013			2012			2013			2012
	(in millions, except per-unit amounts)
Basic earnings per common unit:
Net earnings	$	72.7		$	131.8		$	388.8		$	410.8
Net earnings allocable to General Partner		(25.4	)		(56.6	)		(162.2	)		(176.5	)
Net earnings allocable to Class B Common Units		(0.7	)		(1.3	)		(3.8	)		(4.0	)
Net earnings allocable to common units	$	46.6		$	73.9		$	222.8		$	230.3
Weighted average units outstanding		18.5			18.5			18.5			18.5
Net earnings per common unit	$	2.52		$	4.00		$	12.04		$	12.45