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v3.19.3

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Millions | 9 Months Ended
--- | ---
Sep. 30, 2019 | Sep. 30, 2018
Operating activities |  |
Net income | $ 890.5 | $ 855.2
Reconciliation to cash provided by operating activities |  |
Depreciation and amortization | 690.1 | 628.1
Deferred income taxes and investment tax credits, net | 58.8 | 34.4
Contributions and payments related to pension and OPEB plans | (12.1) | (13.8)
Equity income in transmission affiliates, net of distributions | (17.8) | (4.5)
Change in – |  |
Accounts receivable and unbilled revenues | 360.2 | 312.1
Materials, supplies, and inventories | (44.9) | (69.0)
Other current assets | 110.4 | 112.7
Accounts payable | (192.3) | (71.2)
Other current liabilities | (1.8) | 42.5
Other, net | (0.4) | 181.7
Net cash provided by operating activities | 1,840.7 | 2,008.2
Investing activities |  |
Capital expenditures | (1,511.5) | (1,490.5)
Acquisition of Upstream, net of cash and restricted cash acquired of $9.2 | (268.2) | 0.0
Acquisition of Bishop Hill III, net of restricted cash acquired of $4.5 | 0.0 | (143.5)
Acquisition of Forward Wind Energy Center | 0.0 | (77.1)
Capital contributions to transmission affiliates | (37.3) | (43.7)
Proceeds from the sale of assets and businesses | 32.2 | 10.9
Proceeds from the sale of investments held in rabbi trust | 0.2 | 16.6
Reimbursement for ATC's construction costs | 32.4 | 0.0
Other, net | 17.7 | 7.3
Net cash used in investing activities | (1,734.5) | (1,720.0)
Financing activities |  |
Exercise of stock options | 66.1 | 13.9
Purchase of common stock | (138.2) | (42.0)
Dividends paid on common stock | (558.4) | (523.0)
Issuance of long-term debt | 1,320.0 | 600.0
Retirement of long-term debt | (106.0) | (694.4)
Change in short-term debt | (753.7) | 343.7
Other, net | (15.5) | (4.8)
Net cash used in financing activities | (185.7) | (306.6)
Net change in cash, cash equivalents, and restricted cash | (79.5) | (18.4)
Cash, cash equivalents, and restricted cash at beginning of period | 146.1 | 58.6
Cash, cash equivalents, and restricted cash at end of period | $ 66.6 | $ 40.2

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- Definition The cash outflow for debt initially having maturity due after one year or beyond the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 15 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=118932676&loc=d3e3291-108585 + Details
Name: | us-gaap_RepaymentsOfLongTermDebt
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration