| Merck & Co., Inc. |
| Q4-CY2025 | Q3-CY2025 | Q2-CY2025 | Q1-CY2025 | Q4-CY2024 | Q3-CY2024 | Q2-CY2024 | Q1-CY2024 | Q4-CY2023 | Q3-CY2023 | Q2-CY2023 | Q1-CY2023 | Q4-CY2022 | Q3-CY2022 | Q2-CY2022 | Q1-CY2022 | Q4-CY2021 | Q3-CY2021 | Q2-CY2021 | Q1-CY2021 | Q4-CY2020 | Q3-CY2020 | Q2-CY2020 | Q1-CY2020 | Q4-CY2019 | Q3-CY2019 | Q2-CY2019 | Q1-CY2019 | Q4-CY2018 | Q3-CY2018 | Q2-CY2018 | Q1-CY2018 | Q4-CY2017 | Q3-CY2017 | Q2-CY2017 | Q1-CY2017 | Q4-CY2016 | Q3-CY2016 | Q2-CY2016 | Q1-CY2016 | Q4-CY2015 | Q3-CY2015 | Q2-CY2015 | Q1-CY2015 | Q4-CY2014 | Q3-CY2014 | Q2-CY2014 | Q1-CY2014 | Q4-CY2013 |
| Balance Sheet Date | | | 2025-Jun-30 | 2025-Mar-31 | 2024-Dec-31 | 2024-Sep-30 | 2024-Jun-30 | 2024-Mar-31 | 2023-Dec-31 | 2023-Sep-30 | 2023-Jun-30 | 2023-Mar-31 | 2022-Dec-31 | 2022-Sep-30 | 2022-Jun-30 | 2022-Mar-31 | 2021-Dec-31 | 2021-Sep-30 | 2021-Jun-30 | 2021-Mar-31 | 2020-Dec-31 | 2020-Sep-30 | 2020-Jun-30 | 2020-Mar-31 | 2019-Dec-31 | 2019-Sep-30 | 2019-Jun-30 | 2019-Mar-31 | 2018-Dec-31 | 2018-Sep-30 | 2018-Jun-30 | 2018-Mar-31 | 2017-Dec-31 | 2017-Sep-30 | 2017-Jun-30 | 2017-Mar-31 | 2016-Dec-31 | 2016-Sep-30 | 2016-Jun-30 | 2016-Mar-31 | 2015-Dec-31 | 2015-Sep-30 | 2015-Jun-30 | 2015-Mar-31 | 2014-Dec-31 | 2014-Sep-30 | 2014-Jun-30 | 2014-Mar-31 | 2013-Dec-31 |
| Fiscal Period | | | Q2-FY2025 | Q1-FY2025 | Q4-FY2024 | Q3-FY2024 | Q2-FY2024 | Q1-FY2024 | Q4-FY2023 | Q3-FY2023 | Q2-FY2023 | Q1-FY2023 | Q4-FY2022 | Q3-FY2022 | Q2-FY2022 | Q1-FY2022 | Q4-FY2021 | Q3-FY2021 | Q2-FY2021 | Q1-FY2021 | Q4-FY2020 | Q3-FY2020 | Q2-FY2020 | Q1-FY2020 | Q4-FY2019 | Q3-FY2019 | Q2-FY2019 | Q1-FY2019 | Q4-FY2018 | Q3-FY2018 | Q2-FY2018 | Q1-FY2018 | Q4-FY2017 | Q3-FY2017 | Q2-FY2017 | Q1-FY2017 | Q4-FY2016 | Q3-FY2016 | Q2-FY2016 | Q1-FY2016 | Q4-FY2015 | Q3-FY2015 | Q2-FY2015 | Q1-FY2015 | Q4-FY2014 | Q3-FY2014 | Q2-FY2014 | Q1-FY2014 | Q4-FY2013 |
| Operating Cash Flow | | | 3,293,000,000$ | 2,500,000,000$ | 3,450,000,000$ | 9,291,000,000$ | 5,637,000,000$ | 3,090,000,000$ | 246,000,000$ | 7,717,000,000$ | 3,704,000,000$ | 1,339,000,000$ | 4,430,000,000$ | 5,602,000,000$ | 4,302,000,000$ | 4,761,000,000$ | | | | 1,791,000,000$ | 4,006,000,000$ | 2,173,000,000$ | 3,367,000,000$ | 707,000,000$ | 4,794,000,000$ | 4,226,000,000$ | 3,084,000,000$ | 1,336,000,000$ | 3,592,000,000$ | 2,793,000,000$ | 3,382,000,000$ | 1,155,000,000$ | 4,019,000,000$ | (1,171,000,000$) | 3,317,000,000$ | 286,000,000$ | 3,632,000,000$ | 2,971,000,000$ | 1,615,000,000$ | 2,173,000,000$ | 4,246,000,000$ | 3,311,000,000$ | 2,697,000,000$ | 2,284,000,000$ | (1,035,000,000$) | 4,348,000,000$ | 2,315,000,000$ | 2,361,000,000$ | 3,026,000,000$ |
| Investing Cash Flow | | | (770,000,000$) | (1,487,000,000$) | (1,444,000,000$) | (3,845,000,000$) | (1,069,000,000$) | (1,376,000,000$) | 53,000,000$ | (334,000,000$) | (11,443,000,000$) | (2,359,000,000$) | (1,748,000,000$) | (962,000,000$) | (1,077,000,000$) | (1,173,000,000$) | | | | (738,000,000$) | (4,778,000,000$) | (2,155,000,000$) | (882,000,000$) | (1,628,000,000$) | (763,000,000$) | 191,000,000$ | (2,425,000,000$) | 368,000,000$ | 2,178,000,000$ | 1,660,000,000$ | 673,000,000$ | (197,000,000$) | (58,000,000$) | 671,000,000$ | (1,127,000,000$) | 3,193,000,000$ | (2,563,000,000$) | (890,000,000$) | (1,498,000,000$) | 1,741,000,000$ | (617,000,000$) | (61,000,000$) | 2,525,000,000$ | (6,605,000,000$) | 7,204,000,000$ | (3,722,000,000$) | (49,000,000$) | (3,807,000,000$) | 1,177,000,000$ |
| Financing Cash Flow | | | (3,556,000,000$) | (5,755,000,000$) | (3,009,000,000$) | (2,425,000,000$) | 1,216,000,000$ | (2,814,000,000$) | (2,245,000,000$) | (4,269,000,000$) | 3,758,000,000$ | (2,054,000,000$) | (1,554,000,000$) | (2,702,000,000$) | (1,777,000,000$) | (3,086,000,000$) | | | | (2,098,000,000$) | 1,372,000,000$ | (3,851,000,000$) | 1,137,000,000$ | (1,490,000,000$) | (2,011,000,000$) | (3,152,000,000$) | (2,084,000,000$) | (1,614,000,000$) | (5,566,000,000$) | (1,905,000,000$) | (2,967,000,000$) | (2,722,000,000$) | (5,785,000,000$) | 536,000,000$ | (6,218,000,000$) | 1,461,000,000$ | (1,977,000,000$) | (835,000,000$) | (3,381,000,000$) | (2,866,000,000$) | (2,406,000,000$) | (2,539,000,000$) | (5,597,000,000$) | 5,155,000,000$ | (9,772,000,000$) | 1,279,000,000$ | (8,369,000,000$) | 1,620,000,000$ | (2,624,000,000$) |
| End Cash Position | | | 8,007,000,000$ | 8,629,000,000$ | 13,242,000,000$ | 14,593,000,000$ | 11,304,000,000$ | 5,579,000,000$ | 6,841,000,000$ | 8,605,000,000$ | 5,660,000,000$ | 9,707,000,000$ | 12,694,000,000$ | 11,145,000,000$ | 9,675,000,000$ | 8,556,000,000$ | 8,096,000,000$ | 10,016,000,000$ | 8,575,000,000$ | 6,981,000,000$ | 8,050,000,000$ | 7,356,000,000$ | 11,103,000,000$ | 7,425,000,000$ | 9,676,000,000$ | 7,869,000,000$ | 6,659,000,000$ | 8,076,000,000$ | 7,965,000,000$ | 7,826,000,000$ | 5,310,000,000$ | 4,483,000,000$ | 6,092,000,000$ | 7,901,000,000$ | 7,786,000,000$ | 11,708,000,000$ | 6,515,000,000$ | 7,907,000,000$ | 6,608,000,000$ | 9,716,000,000$ | 8,524,000,000$ | 7,548,000,000$ | 6,922,000,000$ | 7,980,000,000$ | 7,441,000,000$ | 11,370,000,000$ | 9,743,000,000$ | 15,828,000,000$ | 15,621,000,000$ |
| Exchange Rate Effect | | | 374,000,000$ | 156,000,000$ | (367,000,000$) | 294,000,000$ | (82,000,000$) | (138,000,000$) | 186,000,000$ | (157,000,000$) | (93,000,000$) | 87,000,000$ | 366,000,000$ | (412,000,000$) | (309,000,000$) | (55,000,000$) | (68,000,000$) | (46,000,000$) | 78,000,000$ | (97,000,000$) | 164,000,000$ | 87,000,000$ | 65,000,000$ | (63,000,000$) | 43,000,000$ | (54,000,000$) | 8,000,000$ | 20,000,000$ | (65,000,000$) | (32,000,000$) | (262,000,000$) | 154,000,000$ | 19,000,000$ | 79,000,000$ | 106,000,000$ | 253,000,000$ | | | | | | | | | | | | | |
| Dividends Paid | | | 2,077,000,000$ | 2,050,000,000$ | 1,951,000,000$ | 1,953,000,000$ | 1,986,000,000$ | 1,950,000,000$ | 1,852,000,000$ | 1,855,000,000$ | 1,885,000,000$ | 1,853,000,000$ | 1,750,000,000$ | 1,747,000,000$ | 1,770,000,000$ | 1,745,000,000$ | 1,643,000,000$ | 1,649,000,000$ | 1,673,000,000$ | 1,645,000,000$ | 1,542,000,000$ | 1,545,000,000$ | 1,577,000,000$ | 1,551,000,000$ | 1,405,000,000$ | 1,394,000,000$ | 1,468,000,000$ | 1,428,000,000$ | 1,277,000,000$ | 1,285,000,000$ | 1,311,000,000$ | 1,299,000,000$ | 1,283,000,000$ | 1,283,000,000$ | 1,307,000,000$ | 1,294,000,000$ | 1,271,000,000$ | 1,274,000,000$ | 1,300,000,000$ | 1,279,000,000$ | 1,263,000,000$ | 1,272,000,000$ | 1,302,000,000$ | 1,280,000,000$ | 1,259,000,000$ | 1,282,000,000$ | 1,339,000,000$ | 1,290,000,000$ | 1,260,000,000$ |