CASH AND CASH EQUIVALENTS

6 Months Ended

Jun. 30, 2013

Cash and Cash Equivalents [Abstract]

CASH AND CASH EQUIVALENTS

CASH AND CASH EQUIVALENTS

Short-term investments with an original maturity of three months or less are reported as cash equivalents.

The following is a supplemental disclosure to our statements of cash flows:

	Six Months Ended June 30
(Millions)	2013			2012
Cash paid for interest	$	22.1		$	20.1
Cash received for income taxes	(2.0		)	(23.5		)

Cash received from income taxes decreased $21.5 million, primarily caused by refunds received in 2012 due to changes in estimated payments made for the prior year. 

Construction costs funded through accounts payable totaled $25.1 million at June 30, 2013, and $13.5 million at June 30, 2012. These costs were treated as noncash investing activities.