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Fair Value (Tables)

3 Months Ended

Mar. 31, 2017

Fair Value Disclosures [Abstract]

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Recurring Fair Value Measures
Activity in Level 3
Millions
Balance as of December 31, 2016		$25.0
Accretion	0.5
Payments (a)	(15.1		)
Changes in Cash Flow Projections (b)	(0.4		)
Balance as of March 31, 2017		$10.0

(a) Payments relate to retirement of U.S. Water Services former employees.

(b) Changes in cash flow projections reflect the impact of a modification to the shareholder agreement in the first quarter of 2017 which provided participants a one-time election to sell shares at a determined price. Participants representing approximately half of the outstanding contingent consideration shares made the election, which were paid in April 2017, resulting in $4.6 million of the U.S. Water Services Contingent Consideration liability being classified in Other Current Liabilities on the Consolidated Balance Sheet. The remaining liability will be paid through the first quarter of 2019.

Recurring Fair Value Measures [Table Text Block]

	Fair Value as of March 31, 2017
Recurring Fair Value Measures	Level 1				Level 2				Level 3				Total
Millions
Assets
Investments (a)
Available-for-sale – Equity Securities		$7.5			—				—					$7.5
Available-for-sale – Corporate and Governmental Debt Securities	—					$12.1			—				12.1
Cash Equivalents	2.6				—				—				2.6
Total Fair Value of Assets		$10.1				$12.1			—					$22.2
Liabilities (b)
Deferred Compensation	—					$17.2			—					$17.2
U.S. Water Services Contingent Consideration	—				—					$10.0			10.0
Total Fair Value of Liabilities	—					$17.2				$10.0				$27.2
Total Net Fair Value of Assets (Liabilities)		$10.1			$(5.1)				$(10.0)				$(5.0)

(a) Included in Other Investments on the Consolidated Balance Sheet.

(b) Included in Other Non-Current Liabilities on the Consolidated Balance Sheet with the exception of the current portion of the U.S. Water Services Contingent Consideration which is included in Other Current Liabilities. (See Note 1. Operations and Significant Accounting Policies.)

	Fair Value as of December 31, 2016
Recurring Fair Value Measures	Level 1				Level 2				Level 3				Total
Millions
Assets
Investments (a)
Available-for-sale – Equity Securities		$7.1			—				—					$7.1
Available-for-sale – Corporate and Governmental Debt Securities	—					$11.7			—				11.7
Cash Equivalents	1.3				—				—				1.3
Total Fair Value of Assets		$8.4				$11.7			—					$20.1
Liabilities (b)
Deferred Compensation	—					$16.0			—					$16.0
U.S. Water Services Contingent Consideration	—				—					$25.0			25.0
Total Fair Value of Liabilities	—					$16.0				$25.0				$41.0
Total Net Fair Value of Assets (Liabilities)		$8.4			$(4.3)				$(25.0)				$(20.9)

(a) Included in Other Investments on the Consolidated Balance Sheet.

(b) Included in Other Non-Current Liabilities on the Consolidated Balance Sheet.

Financial Instruments [Table Text Block]

Financial Instruments	Carrying Amount		Fair Value
Millions
Long-Term Debt, Including Long-Term Debt Due Within One Year
March 31, 2017	$1,543.4		$1,614.9
December 31, 2016	$1,569.1		$1,653.8

X

- Definition

Tabular disclosure of the fair value of financial instruments, including financial assets and financial liabilities, and the measurements of those instruments, assets, and liabilities.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13476-108611

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19207-110258

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-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=73719730&loc=d3e13467-108611

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-Publisher FASB
-Name Accounting Standards Codification
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Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=66048111&loc=d3e19279-110258

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Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

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