Read the following texts and table with financial data from an S&P 500 earnings report carefully.Based on the question-answer history (if provided), answer the last question. The answer may require mathematical calculation based on the data provided.


cash flows from operations . <table class='wikitable'><tr><td>1</td><td>in millions</td><td>fiscal year 2018</td><td>fiscal year 2017</td><td>fiscal year 2016</td></tr><tr><td>2</td><td>net earnings including earnings attributable to redeemable and noncontrollinginterests</td><td>$ 2163.0</td><td>$ 1701.1</td><td>$ 1736.8</td></tr><tr><td>3</td><td>depreciation and amortization</td><td>618.8</td><td>603.6</td><td>608.1</td></tr><tr><td>4</td><td>after-taxearnings from joint ventures</td><td>-84.7 ( 84.7 )</td><td>-85.0 ( 85.0 )</td><td>-88.4 ( 88.4 )</td></tr><tr><td>5</td><td>distributions of earnings from joint ventures</td><td>113.2</td><td>75.6</td><td>75.1</td></tr><tr><td>6</td><td>stock-based compensation</td><td>77.0</td><td>95.7</td><td>89.8</td></tr><tr><td>7</td><td>deferred income taxes</td><td>-504.3 ( 504.3 )</td><td>183.9</td><td>120.6</td></tr><tr><td>8</td><td>pension and other postretirement benefit plan contributions</td><td>-31.8 ( 31.8 )</td><td>-45.4 ( 45.4 )</td><td>-47.8 ( 47.8 )</td></tr><tr><td>9</td><td>pension and other postretirement benefit plan costs</td><td>4.6</td><td>35.7</td><td>118.1</td></tr><tr><td>10</td><td>divestitures loss ( gain )</td><td>-</td><td>13.5</td><td>-148.2 ( 148.2 )</td></tr><tr><td>11</td><td>restructuring impairment and other exit costs</td><td>126.0</td><td>117.0</td><td>107.2</td></tr><tr><td>12</td><td>changes in current assets and liabilities excluding the effects of acquisitions anddivestitures</td><td>542.1</td><td>-194.2 ( 194.2 )</td><td>298.5</td></tr><tr><td>13</td><td>other net</td><td>-182.9 ( 182.9 )</td><td>-86.3 ( 86.3 )</td><td>-105.6 ( 105.6 )</td></tr><tr><td>14</td><td>net cash provided by operating activities</td><td>$ 2841.0</td><td>$ 2415.2</td><td>$ 2764.2</td></tr></table> in fiscal 2018 , cash provided by operations was $ 2.8 billion compared to $ 2.4 billion in fiscal 2017 . the $ 426 million increase was primarily driven by the $ 462 million increase in net earnings and the $ 736 million change in current assets and liabilities , partially offset by a $ 688 million change in deferred income taxes . the change in deferred income taxes was primarily related to the $ 638 million provisional benefit from revaluing our net u.s . deferred tax liabilities to reflect the new u.s . corporate tax rate as a result of the tcja . the $ 736 million change in current assets and liabilities was primarily due to changes in accounts payable of $ 476 million related to the extension of payment terms and timing of payments , and $ 264 million of changes in other current liabilities primarily driven by changes in income taxes payable , trade and advertising accruals , and incentive accruals . we strive to grow core working capital at or below the rate of growth in our net sales . for fiscal 2018 , core working capital decreased 27 percent , compared to a net sales increase of 1 percent . in fiscal 2017 , core working capital increased 9 percent , compared to a net sales decline of 6 percent , and in fiscal 2016 , core working capital decreased 41 percent , compared to net sales decline of 6 percent . in fiscal 2017 , our operations generated $ 2.4 billion of cash , compared to $ 2.8 billion in fiscal 2016 . the $ 349 million decrease was primarily driven by a $ 493 million change in current assets and liabilities . the $ 493 million change in current assets and liabilities was primarily due to changes in other current liabilities driven by changes in income taxes payable , a decrease in incentive accruals , and changes in trade and advertising accruals due to reduced spending . the change in current assets and liabilities was also impacted by the timing of accounts payable . additionally , we recorded a $ 14 million loss on a divestiture during fiscal 2017 , compared to a $ 148 million net gain on divestitures during fiscal 2016 , and classified the related cash flows as investing activities. .
Question: what was the total cash provided by operations in 2018, in billions?
Answer: 2.8
Question: and what was it in 2017, also in billions?

2.4