Table:
| (In millions, except per share amounts) |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- |
| Year Ended June 30, | 2019 (a) | 2018 | 2017 (d)(e) | 2016 (d) | 2015 |
| Revenue | $ 125,843 | $ 110,360 | $ 96,571 | $ 91,154 | $ 93,580 |
| Gross margin | 82,933 | 72,007 | 62,310 | 58,374 | 60,542 |
| Operating income | 42,959 | 35,058 | 29,025 (f) | 26,078 (g) | 18,161(h) |
| Net income | 39,240(b) | 16,571(c) | 25,489 (f) | 20,539 (g) | 12,193(h) |
| Diluted earnings per share | 5.06 (b) | 2.13(c) | 3.25 (f) | 2.56 (g) | 1.48(h) |
| Cash dividends declared per share | 1.84 | 1.68 | 1.56 | 1.44 | 1.24 |
| Cash, cash equivalents, and short-term |  |  |  |  |  |
| investments | 133,819 | 133,768 | 132,981 | 113,240 | 96,526 |
| Total assets | 286,556 | 258,848 | 250,312 | 202,897 | 174,303 |
| Long-term obligations | 114,806 | 117,642 | 106,856 | 66,705 | 44,574 |
| Stockholders’ equity | 102,330 | 82,718 | 87,711 | 83,090 | 80,083 |
Paragraphs:
(a) GitHub has been included in our consolidated results of operations starting on the October 25, 2018 acquisition date.
(b) Includes a $2.6 billion net income tax benefit related to intangible property transfers and a $157 million net charge related to the enactment of the Tax Cuts and Jobs Act (“TCJA”), which together increased net income and diluted earnings per share (“EPS”) by $2.4 billion and $0.31, respectively. Refer to Note 12 – Income Taxes of the Notes to Financial Statements for further discussion.
(c) Includes a $13.7 billion net charge related to the enactment of the TCJA, which decreased net income and diluted EPS by $13.7 billion and $1.75, respectively. Refer to Note 12 – Income Taxes of the Notes to Financial Statements for further discussion.
(d) Reflects the impact of the adoption of new accounting standards in fiscal year 2018 related to revenue recognition and leases.
(e) LinkedIn has been included in our consolidated results of operations starting on the December 8, 2016 acquisition date.
(f) Includes $306 million of employee severance expenses primarily related to our sales and marketing restructuring plan, which decreased operating income, net income, and diluted EPS by $306 million, $243 million, and $0.04, respectively.
(g) Includes $630 million of asset impairment charges related to our Phone business and $480 million of restructuring charges associated with our Phone business restructuring plans, which together decreased operating income, net income, and diluted EPS by $1.1 billion, $895 million, and $0.11, respectively.
(h) Includes $7.5 billion of goodwill and asset impairment charges related to our Phone business and $2.5 billion of integration and restructuring expenses, primarily associated with our Phone business restructuring plans, which together decreased operating income, net income, and diluted EPS by $10.0 billion, $9.5 billion, and $1.15, respectively.
Question:
How much would operating income in 2015 have been if there were no goodwill and impairment charges in 2015?
Answer: 10.0 billion + 18161 million  = 28161