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Supplemental Cash Flow Information | 12 Months Ended
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Dec. 31, 2016
Supplemental Cash Flow Information [Abstract] |
SUPPLEMENTAL CASH FLOW INFORMATION | SUPPLEMENTAL CASH FLOW INFORMATION
(in millions) |  | 2016 |  | 2015 |  | 2014
Cash (paid) for interest, net of amount capitalized |  | $ | (411.9 | ) |  | $ | (329.6 | ) |  | $ | (241.4 | )
Cash received (paid) for income taxes, net |  | 39.7 |  |  | (9.3 | ) |  | (22.0 | )
Significant non-cash transactions: |  |  |  |  |  |
Accounts payable related to construction costs |  | 170.1 |  |  | 177.1 |  |  | 1.8 |
Restricted cash used to purchase investments held in the rabbi trust |  | 59.2 |  |  | 60.2 |  |  | — |
Amortization of deferred revenue |  | 24.7 |  |  | 39.9 |  |  | 55.7 |
Note receivable received related to the sale of AMP Trillium* |  | — |  |  | 12.0 |  |  | — |
Capital assets received related to the sale of AMP Trillium * |  | — |  |  | 6.3 |  |  | — |
* | ITF owned a 30% interest in AMP. See Note 3, Dispositions, for more information on the sale of ITF.
At December 31, 2016 and 2015, restricted cash of $33.6 million and $118.4 million, respectively, was recorded within other long-term assets on our balance sheets. The majority of this amount was held in the Integrys rabbi trust and represents a portion of the required funding that was triggered by the announcement of the Integrys acquisition. Withdrawals of restricted cash from the rabbi trust for qualifying payments are shown as an investing activity on the statements of cash flows. Decreases in restricted cash due to the purchase of restricted investments held in the rabbi trust are reflected as non-cash transactions on the statements of cash flows and are included in the table above.

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- Definition The entire disclosure for supplemental cash flow activities, including cash, noncash, and part noncash transactions, for the period. Noncash is defined as information about all investing and financing activities of an enterprise during a period that affect recognized assets or liabilities but that do not result in cash receipts or cash payments in the period. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 + Details
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