SUPPLEMENTAL CASH FLOW INFORMATION



	Three Months Ended March 31
(in millions)	2018			2017
Cash (paid) for interest, net of amount capitalized	$	(68.5	)	$	(56.6	)
Cash received for income taxes, net	0.3			8.9
Significant non-cash transactions
Accounts payable related to construction costs	74.9			116.4
Portion of Bostco real estate holdings sale financed with note receivable *	—			7.0
Amortization of deferred revenue	6.3			6.2


*	See Note 3, Disposition, for more information on this sale.

Effective January 1, 2018, we adopted ASU 2016-18, Restricted Cash. Under this ASU, amounts generally described as restricted cash and restricted cash equivalents are included with cash and cash equivalents when reconciling the beginning-of-the period and end-of-the period total amounts shown on the statements of cash flows. As a result, we no longer present transfers between cash and cash equivalents and restricted cash and restricted cash equivalents in the statements of cash flows. Instead, changes in restricted cash are classified as either operating activities, investing activities or financing activities.

The majority of our restricted cash consists of amounts held in the Integrys rabbi trust, which are used to fund participants' benefits under the Integrys deferred compensation plan and certain Integrys non-qualified pension plans. All assets held within the rabbi trust are restricted as they can only be withdrawn from the trust to make qualifying benefit payments. The adoption of ASU 2016-18 resulted in an increase of $7.5 million in net cash flows used by investing activities from what was previously reported for the quarter ended March 31, 2017.

See the following table for a reconciliation of cash and cash equivalents and restricted cash reported within the balance sheets to the sum of the total of the same amounts shown in the statements of cash flows at March 31.



(in millions)	2018		2017
Cash and cash equivalents	$	48.1	$	45.7
Restricted cash included in other current assets	—		0.8
Restricted cash included in other long term assets	23.6		26.9
Cash, cash equivalents, and restricted cash	$	71.7	$	73.4

Our statements of cash flows for the years ended December 31, 2017, 2016, and 2015 were retroactively restated from what was previously presented in our 2017 Annual Report on Form 10-K to reflect the adoption of ASU 2016-18. The impacts to our statements of cash flows from adoption of this standard are reflected in the table below.



	Year Ended December 31, 2017									Year Ended December 31, 2016									Year Ended December 31, 2015
(in millions)	2017 Form 10-K Cash Flows			Impact of ASU 2016-18			Cash Flows After Adoption			2017 Form 10-K Cash Flows			Impact of ASU 2016-18			Cash Flows After Adoption			2017 Form 10-K Cash Flows			Impact of ASU 2016-18			Cash Flows After Adoption
Operating Activities
Change in –
Other current assets	$	(6.0	)	$	(1.1	)	$	(7.1	)	$	103.1		$	0.1		$	103.2		$	(27.2	)	$	—		$	(27.2	)
Other, net	(197.5		)	0.1			(197.4		)	(53.8		)	0.2			(53.6		)	(209.1		)	1.5			(207.6		)
Net cash provided by operating activities	2,079.6			(1.0		)	2,078.6			2,103.5			0.3			2,103.8			1,293.6			1.5			1,295.1

Investing Activities
Withdrawal of restricted cash from rabbi trust for qualifying payments	19.5			(19.5		)	—			26.6			(26.6		)	—			1.4			(1.4		)	—
Proceeds from the sale of investments held in rabbi trust	—			8.7			8.7			—			1.7			1.7			—			126.9			126.9
Purchase of investments held in rabbi trust	—			(3.7		)	(3.7		)	—			(59.2		)	(59.2		)	—			(60.2		)	(60.2		)
Integrys acquisition, net of cash acquired	—			—			—			—			—			—			(1,329.9		)	30.8			(1,299.1		)
Other, net	12.0			—			12.0			3.0			—			3.0			57.0			(1.2		)	55.8
Net cash used in investing activities	(2,239.6		)	(14.5		)	(2,254.1		)	(1,270.1		)	(84.1		)	(1,354.2		)	(2,517.5		)	94.9			(2,422.6		)

Financing Activities
Other, net	(6.5		)	—			(6.5		)	(13.6		)	—			(13.6		)	(18.9		)	22.6			3.7
Net cash provided by (used in) financing activities	161.4			—			161.4			(845.7		)	—			(845.7		)	1,211.8			22.6			1,234.4

Net change in cash, cash equivalents, and restricted cash	1.4			(15.5		)	(14.1		)	(12.3		)	(83.8		)	(96.1		)	(12.1		)	119.0			106.9
Cash, cash equivalents, and restricted cash at beginning of period	37.5			35.2			72.7			49.8			119.0			168.8			61.9			—			61.9
Cash, cash equivalents, and restricted cash at end of period	$	38.9		$	19.7		$	58.6		$	37.5		$	35.2		$	72.7		$	49.8		$	119.0		$	168.8

Effective January 1, 2018, we adopted ASU 2016-15, Classification of Certain Cash Receipts and Cash Payments. There are eight main provisions of this ASU for which current GAAP either was unclear or did not include specific guidance. The adoption of this guidance had no impact on our financial statements for the quarters ended March 31, 2018 and 2017.

ASU 2016-15 provides an accounting policy election for classifying distributions received from equity method investments. We adopted the cumulative earnings approach for classifying distributions received in the statements of cash flows. Under the cumulative earnings approach, we compare the distributions received to cumulative equity method earnings since inception. Any distributions received up to the amount of cumulative equity earnings are considered a return on investment and classified in operating activities. Any excess distributions are considered a return of investment and classified in investing activities. We did not receive any excess distributions for the quarters ended March 31, 2018 and 2017.