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Revenue (Disaggregation of Revenue by Product) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 6,740.1 | $ 5,499.4 | $ 13,545.7 | $ 11,359.2
U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,704.2 | 3,144.8 | 7,645.5 | 6,473.6
Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,035.9 | 2,354.6 | 5,900.2 | 4,885.6
Diabetes |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3,175.5 | 2,779.0 | 6,286.6 | 5,747.9
Diabetes | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 2,079.8 | 1,873.3 | 4,141.0 | 3,864.5
Diabetes | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,095.7 | 905.7 | 2,145.5 | 1,883.4
Trulicity® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,535.6 | 1,229.8 | 2,988.1 | 2,459.1
Trulicity® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,147.6 | 952.5 | 2,264.3 | 1,882.0
Trulicity® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 388.0 | 277.2 | 723.7 | 577.1
Humalog® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 607.6 | 555.1 | 1,224.6 | 1,250.8
Humalog® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 329.1 | 281.7 | 661.7 | 680.3
Humalog® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 278.6 | 273.3 | 562.9 | 570.5
Humulin® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 315.3 | 313.6 | 637.0 | 629.3
Humulin® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 221.1 | 214.3 | 440.1 | 428.4
Humulin® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 94.3 | 99.3 | 196.9 | 200.8
Jardiance |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 356.5 | 262.0 | 668.5 | 529.5
Jardiance | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 194.4 | 145.1 | 345.6 | 289.7
Jardiance | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 162.1 | 116.9 | 322.9 | 239.8
Basaglar® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 210.7 | 290.4 | 457.3 | 594.1
Basaglar® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 133.4 | 229.7 | 308.6 | 460.1
Basaglar® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 77.3 | 60.7 | 148.7 | 134.0
Other Diabetes |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 149.8 | 128.1 | 311.1 | 285.1
Other Diabetes | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 54.2 | 50.0 | 120.7 | 124.0
Other Diabetes | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 95.4 | 78.3 | 190.4 | 161.2
Oncology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 1,554.0 | 1,268.6 | 2,926.3 | 2,470.1
Oncology | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 828.3 | 682.7 | 1,470.8 | 1,340.6
Oncology | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 725.7 | 585.9 | 1,455.4 | 1,129.5
Alimta® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 610.6 | 539.1 | 1,169.6 | 1,099.2
Alimta® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 353.5 | 317.2 | 614.6 | 641.5
Alimta® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 257.1 | 221.9 | 554.9 | 457.7
Verzenio® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 341.3 | 208.6 | 610.3 | 396.7
Verzenio® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 209.7 | 141.7 | 382.5 | 271.1
Verzenio® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 131.6 | 66.9 | 227.8 | 125.6
Cyramza® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 268.7 | 256.7 | 509.2 | 495.7
Cyramza® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 101.4 | 94.1 | 181.5 | 183.2
Cyramza® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 167.3 | 162.7 | 327.7 | 312.5
Erbitux® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 147.0 | 129.5 | 269.4 | 260.3
Erbitux® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 135.8 | 115.8 | 243.7 | 233.7
Erbitux® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 11.2 | 13.7 | 25.7 | 26.7
Tyvyt® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 105.0 | 64.1 | 214.6 | 121.5
Tyvyt® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 0.0 | 0.0 | 0.0 | 0.0
Tyvyt® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 105.0 | 64.1 | 214.6 | 121.5
Other Oncology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 81.4 | 70.6 | 153.2 | 96.7
Other Oncology | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 27.9 | 13.9 | 48.5 | 11.1
Other Oncology | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 53.5 | 56.6 | 104.7 | 85.5
Immunology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 785.4 | 548.3 | 1,399.3 | 1,134.1
Immunology | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 422.4 | 310.5 | 707.1 | 651.9
Immunology | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 363.1 | 237.8 | 692.2 | 482.2
Taltz® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 569.1 | 395.2 | 972.4 | 838.7
Taltz® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 399.8 | 289.2 | 649.4 | 616.7
Taltz® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 169.3 | 106.0 | 322.9 | 222.0
Olumiant® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 208.4 | 145.0 | 402.2 | 284.7
Olumiant® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 17.8 | 13.2 | 42.5 | 24.5
Olumiant® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 190.6 | 131.8 | 359.7 | 260.2
Other Immunology |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 7.9 | 8.1 | 24.7 | 10.7
Other Immunology | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 4.8 | 8.1 | 15.2 | 10.7
Other Immunology | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 3.2 | 0.0 | 9.6 | 0.0
Neuroscience |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 512.2 | 422.5 | 977.6 | 886.0
Neuroscience | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 166.7 | 104.0 | 308.4 | 214.2
Neuroscience | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 345.5 | 318.5 | 669.2 | 671.7
Cymbalta® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 175.6 | 179.9 | 352.3 | 390.3
Cymbalta® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 12.4 | 7.7 | 23.3 | 19.3
Cymbalta® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 163.3 | 172.1 | 328.9 | 370.9
Emgality® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 156.3 | 87.4 | 275.7 | 161.5
Emgality® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 112.1 | 80.6 | 213.6 | 147.9
Emgality® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 44.2 | 6.8 | 62.2 | 13.6
Zyprexa® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 95.4 | 96.6 | 191.1 | 195.0
Zyprexa® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 8.4 | 9.1 | 15.3 | 20.3
Zyprexa® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 86.9 | 87.5 | 175.8 | 174.7
Other Neuroscience |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 84.9 | 58.6 | 158.5 | 139.2
Other Neuroscience | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 33.8 | 6.6 | 56.2 | 26.7
Other Neuroscience | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 51.1 | 52.1 | 102.3 | 112.5
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 712.9 | 481.0 | 1,955.9 | 1,121.1
Other | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 207.0 | 174.4 | 1,018.1 | 402.4
Other | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 506.0 | 306.7 | 937.8 | 718.7
COVID-19 Antibodies |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 148.9 | 0.0 | 959.1 | 0.0
COVID-19 Antibodies | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 83.4 | 0.0 | 734.0 | 0.0
COVID-19 Antibodies | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 65.7 | 0.0 | 225.1 | 0.0
Forteo® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 218.4 | 252.7 | 416.9 | 525.0
Forteo® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 122.8 | 119.6 | 220.5 | 242.2
Forteo® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 95.6 | 133.0 | 196.4 | 282.9
Cialis® |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 281.0 | 130.7 | 407.8 | 323.8
Cialis® | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | (5.2) | 23.4 | 3.4 | 49.5
Cialis® | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 286.3 | 107.3 | 404.4 | 274.3
Other |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 64.6 | 97.6 | 172.1 | 272.3
Other | U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | 6.0 | 31.4 | 60.2 | 110.7
Other | Outside U.S. |  |  |  |
Disaggregation of Revenue [Line Items] |  |  |  |
Revenue | $ 58.4 | $ 66.4 | $ 111.9 | $ 161.5

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