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Quarterly Financial Data (Unaudited) (Tables) | 12 Months Ended
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Dec. 31, 2017
Quarterly Financial Data |
Schedule of Unaudited Quarterly Financial Data | The following table summarizes the unaudited quarterly results of operations for 2017 and 2016 (in millions, except per share amounts):
|  | First |  | Second |  | Third |  | Fourth
|  | Quarter |  | Quarter |  | Quarter |  | Quarter
2017 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 3,440 |  | $ | 3,677 |  | $ | 3,716 |  | $ | 3,652
Income from operations |  |  | 558 |  |  | 673 |  |  | 701 |  |  | 704
Consolidated net income |  |  | 297 |  |  | 361 |  |  | 388 |  |  | 903
Net income attributable to Waste Management, Inc. |  |  | 298 |  |  | 362 |  |  | 386 |  |  | 903
Basic earnings per common share |  |  | 0.68 |  |  | 0.82 |  |  | 0.88 |  |  | 2.08
Diluted earnings per common share (a) |  |  | 0.67 |  |  | 0.81 |  |  | 0.87 |  |  | 2.06
2016 |  |  |  |  |  |  |  |  |  |  |  |
Operating revenues |  | $ | 3,176 |  | $ | 3,425 |  | $ | 3,548 |  | $ | 3,460
Income from operations |  |  | 508 |  |  | 611 |  |  | 560 |  |  | 617
Consolidated net income |  |  | 256 |  |  | 286 |  |  | 304 |  |  | 334
Net income attributable to Waste Management, Inc. |  |  | 258 |  |  | 287 |  |  | 302 |  |  | 335
Basic earnings per common share |  |  | 0.58 |  |  | 0.65 |  |  | 0.68 |  |  | 0.76
Diluted earnings per common share |  |  | 0.58 |  |  | 0.64 |  |  | 0.68 |  |  | 0.75
| (a) |  | As of January 1, 2017, we adopted ASU 2016‑09 prospectively and no longer include excess tax benefits as assumed proceeds in the calculation of diluted weighted shares outstanding. See Note 2 for further discussion.

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- Definition Tabular disclosure of quarterly financial data. Includes, but is not limited to, financial information for fiscal quarters, cumulative effect of a change in accounting principle and earnings per share data. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 270 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a)-(j) -URI http://asc.fasb.org/extlink&oid=84173487&loc=d3e1280-108306 + Details
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