Statements Of Consolidated and Combined Cash Flows - USD ($) $ in Millions |
6 Months Ended |
Jun. 30, 2015 |
Jun. 30, 2014 |
| Operating Activities |
|
|
| Net Income |
$ 239.0
|
|
| Adjustments to Reconcile Net Income to Net Cash from Operating Activities: |
|
|
| Depreciation and amortization |
65.3
|
|
| Deferred income taxes and investment tax credits |
10.5
|
|
| Deferred revenue |
(0.1)
|
|
| Equity-based compensation expense and 401(k) profit sharing contribution |
3.6
|
|
| Gain on sale of assets |
(13.6)
|
|
| Income from unconsolidated affiliates |
(28.9)
|
|
| Amortization of Financing Costs |
0.2
|
|
| AFUDC equity |
(8.4)
|
|
| Distributions of earnings received from equity investees |
27.9
|
|
| Changes in Assets and Liabilities: |
|
|
| Accounts receivable |
13.9
|
|
| Accounts receivable-affiliated |
17.1
|
|
| Accounts payable |
1.0
|
|
| Accounts payable-affiliated |
(14.7)
|
|
| Customer deposits |
1.0
|
|
| Taxes accrued |
(10.2)
|
|
| Exchange gas receivable/payable |
0.3
|
|
| Other accruals |
(4.5)
|
|
| Prepayments and other current assets |
17.0
|
|
| Regulatory assets/liabilities |
25.5
|
|
| Postretirement and postemployment benefits |
(13.5)
|
|
| Deferred charges and other noncurrent assets |
(1.9)
|
|
| Other noncurrent liabilities |
(1.6)
|
|
| Net Cash Flows from Operating Activities |
324.9
|
|
| Investing Activities |
|
|
| Capital expenditures |
(430.6)
|
|
| Insurance recoveries |
2.1
|
|
| Change in short-term lendings-affiliated |
(527.1)
|
|
| Proceeds from disposition of assets |
19.0
|
|
| Distributions from (contributions to) equity investees |
2.2
|
|
| Other investing activities |
(13.4)
|
|
| Net Cash Flows used for Investing Activities |
(947.8)
|
|
| Financing Activities |
|
|
| Change in short-term borrowings |
20.0
|
|
| Change in short-term borrowings-affiliated |
(180.2)
|
|
| Issuance of long-term debt-affiliated |
0.0
|
|
| Payments of long-term debt-affiliated, including current portion |
(957.8)
|
|
| Proceeds from the issuance of common units, net of offering costs |
1,168.4
|
|
| Distribution of IPO proceeds to parent |
(500.0)
|
|
| Contribution of capital from parent |
1,217.3
|
|
| Partners' Capital Account, Distributions |
(9.2)
|
|
| Net Cash Flows from Financing Activities |
758.5
|
|
| Change in cash and cash equivalents |
135.6
|
|
| Cash and cash equivalents at beginning of period |
0.5
|
|
| Cash and Cash Equivalents at End of Period |
136.1
|
|
| Predecessor [Member] |
|
|
| Operating Activities |
|
|
| Net Income |
|
$ 151.5
|
| Adjustments to Reconcile Net Income to Net Cash from Operating Activities: |
|
|
| Depreciation and amortization |
|
58.5
|
| Deferred income taxes and investment tax credits |
|
47.4
|
| Deferred revenue |
|
2.0
|
| Equity-based compensation expense and 401(k) profit sharing contribution |
|
1.7
|
| Gain on sale of assets |
|
(17.8)
|
| Income from unconsolidated affiliates |
|
(20.9)
|
| Amortization of Financing Costs |
|
0.0
|
| AFUDC equity |
|
(4.3)
|
| Distributions of earnings received from equity investees |
|
12.9
|
| Changes in Assets and Liabilities: |
|
|
| Accounts receivable |
|
(25.2)
|
| Accounts receivable-affiliated |
|
19.0
|
| Accounts payable |
|
24.2
|
| Accounts payable-affiliated |
|
(17.7)
|
| Customer deposits |
|
75.2
|
| Taxes accrued |
|
(11.1)
|
| Exchange gas receivable/payable |
|
4.7
|
| Other accruals |
|
4.3
|
| Prepayments and other current assets |
|
20.4
|
| Regulatory assets/liabilities |
|
25.6
|
| Postretirement and postemployment benefits |
|
(8.9)
|
| Deferred charges and other noncurrent assets |
|
(3.2)
|
| Other noncurrent liabilities |
|
(0.8)
|
| Net Cash Flows from Operating Activities |
|
337.5
|
| Investing Activities |
|
|
| Capital expenditures |
|
(296.6)
|
| Insurance recoveries |
|
6.8
|
| Change in short-term lendings-affiliated |
|
(10.4)
|
| Proceeds from disposition of assets |
|
4.9
|
| Distributions from (contributions to) equity investees |
|
(54.8)
|
| Other investing activities |
|
(3.4)
|
| Net Cash Flows used for Investing Activities |
|
(353.5)
|
| Financing Activities |
|
|
| Change in short-term borrowings |
|
0.0
|
| Change in short-term borrowings-affiliated |
|
(312.6)
|
| Issuance of long-term debt-affiliated |
|
328.4
|
| Payments of long-term debt-affiliated, including current portion |
|
0.0
|
| Proceeds from the issuance of common units, net of offering costs |
|
0.0
|
| Distribution of IPO proceeds to parent |
|
0.0
|
| Contribution of capital from parent |
|
0.0
|
| Partners' Capital Account, Distributions |
|
0.0
|
| Net Cash Flows from Financing Activities |
|
15.8
|
| Change in cash and cash equivalents |
|
(0.2)
|
| Cash and cash equivalents at beginning of period |
$ 0.5
|
0.3
|
| Cash and Cash Equivalents at End of Period |
|
$ 0.1
|