Summary of Significant Accounting Policies Summary of Significant Accounting Policies (Tables)

6 Months Ended

Jun. 30, 2018

Jun. 30, 2017

Schedule of Cash and Cash Equivalents [Table Text Block]

The following table provides a reconciliation of cash, cash equivalents, restricted cash and restricted cash equivalents reported in our consolidated balance sheets to the total shown in our consolidated statements of cash flows:



(In millions)	As of
	June 30, 2018		December 31, 2017		June 30, 2017		December 31, 2016
Cash and cash equivalents	$	55.7	$	8.2	$	27.2	$	14.6
Restricted cash and cash equivalents	338.0		255.6		313.9		224.7
Total cash, cash equivalents, restricted cash and restricted cash equivalents	$	393.7	$	263.8	$	341.1	$	239.3

Cash Flow, Supplemental Disclosures [Text Block]

The following table reconciles the consolidated statement of cash flows line items impacted by the adoption of this standard on January 1, 2018:



(In millions)	For the Six Months Ended June 30, 2017
	Adjusted			ASU 2016-18 Adjustment		Previously Reported
Decrease (increase) in restricted cash and cash equivalents	$	—		$	89.2	$	(89.2	)
Net cash used in investing activities	(445.5		)	89.2		(534.7		)

Net increase in cash, cash equivalents, restricted cash and restricted cash equivalents	101.8			89.2		12.6
Cash, cash equivalents, restricted cash and restricted cash equivalents beginning of period	239.3			224.7		14.6
Cash, cash equivalents, restricted cash and restricted cash equivalents end of period	$	341.1		$	313.9	$	27.2