XML 116 R100.htm IDEA: XBRL DOCUMENT
v3.22.4

Retirement Benefits (Schedule of Fair Value Disclosures) (Details) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | $ 13,195.8 | $ 16,416.0 | $ 14,579.0
Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 2,492.5 | 3,361.4 | $ 3,227.0
U.S. | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,132.4 | 1,325.4 |
U.S. | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 104.2 | 124.7 |
International | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,177.1 | 2,722.7 |
International | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 72.0 | 180.6 |
Developed markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 2,445.5 | 4,496.0 |
Developed markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 63.1 | 102.2 |
Developed markets - repurchase agreements | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | (706.6) | (1,376.2) |
Emerging markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 273.5 | 611.0 |
Emerging markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 21.0 | 51.6 |
Hedge funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 3,249.0 | 3,046.8 |
Hedge funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 294.9 | 275.4 |
Equity-like funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 4,014.1 | 3,816.4 |
Equity-like funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 332.8 | 317.8 |
Cash value of trust owned insurance contract | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,470.8 | 2,166.8 |
Real estate | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 349.1 | 630.3 |
Real estate | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 21.6 | 36.2 |
Other | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,261.7 | 1,143.6 |
Other | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 112.1 | 106.1 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,288.7 | 1,728.4 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 113.4 | 147.5 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 396.6 | 430.4 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | U.S. | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 35.7 | 40.9 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | International | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 369.4 | 815.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | International | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 31.9 | 47.7 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Developed markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 19.8 | 2.6 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Developed markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Developed markets - repurchase agreements | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 6.4 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Emerging markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 10.6 | 11.3 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Emerging markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Hedge funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Hedge funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity-like funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 2.1 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity-like funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Cash value of trust owned insurance contract | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 234.9 | 363.8 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Real estate | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 21.6 | 34.5 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 251.0 | 103.2 |
Quoted Prices in Active Markets for Identical Assets (Level 1) | Other | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 24.2 | 24.4 |
Significant Other Observable Inputs (Level 2) | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,546.4 | 2,501.7 |
Significant Other Observable Inputs (Level 2) | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,514.0 | 2,290.0 |
Significant Other Observable Inputs (Level 2) | U.S. | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.1 | 0.1 |
Significant Other Observable Inputs (Level 2) | U.S. | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | International | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 300.9 | 0.0 |
Significant Other Observable Inputs (Level 2) | International | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Developed markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 2,058.2 | 3,356.6 |
Significant Other Observable Inputs (Level 2) | Developed markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 63.1 | 80.5 |
Significant Other Observable Inputs (Level 2) | Developed markets - repurchase agreements | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | (713.0) | (1,376.2) |
Significant Other Observable Inputs (Level 2) | Emerging markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 32.0 | 250.5 |
Significant Other Observable Inputs (Level 2) | Emerging markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 23.7 |
Significant Other Observable Inputs (Level 2) | Hedge funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Hedge funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Equity-like funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Equity-like funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Other Observable Inputs (Level 2) | Cash value of trust owned insurance contract | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,470.8 | 2,166.8 |
Significant Other Observable Inputs (Level 2) | Real estate | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 7.5 |
Significant Other Observable Inputs (Level 2) | Real estate | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.7 |
Significant Other Observable Inputs (Level 2) | Other | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | (131.8) | 263.2 |
Significant Other Observable Inputs (Level 2) | Other | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | (19.9) | 18.3 |
Significant Unobservable Inputs (Level 3) | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 25.5 | 15.4 |
Significant Unobservable Inputs (Level 3) | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 2.4 | 1.5 |
Significant Unobservable Inputs (Level 3) | U.S. | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 1.2 |
Significant Unobservable Inputs (Level 3) | U.S. | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.1 |
Significant Unobservable Inputs (Level 3) | International | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | International | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Developed markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.1 | 0.0 |
Significant Unobservable Inputs (Level 3) | Developed markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Developed markets - repurchase agreements | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Emerging markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.1 |
Significant Unobservable Inputs (Level 3) | Emerging markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Hedge funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Hedge funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Equity-like funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 25.4 | 5.5 |
Significant Unobservable Inputs (Level 3) | Equity-like funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 2.4 | 0.5 |
Significant Unobservable Inputs (Level 3) | Cash value of trust owned insurance contract | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Significant Unobservable Inputs (Level 3) | Real estate | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 10.7 |
Significant Unobservable Inputs (Level 3) | Real estate | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 1.0 |
Significant Unobservable Inputs (Level 3) | Other | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | (2.1) |
Significant Unobservable Inputs (Level 3) | Other | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | (0.1) |
Investments Valued at Net Asset Value | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 10,335.2 | 12,170.5 |
Investments Valued at Net Asset Value | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 862.7 | 922.4 |
Investments Valued at Net Asset Value | U.S. | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 735.7 | 893.7 |
Investments Valued at Net Asset Value | U.S. | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 68.5 | 83.7 |
Investments Valued at Net Asset Value | International | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 506.8 | 1,907.7 |
Investments Valued at Net Asset Value | International | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 40.1 | 132.9 |
Investments Valued at Net Asset Value | Developed markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 367.4 | 1,136.8 |
Investments Valued at Net Asset Value | Developed markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 21.7 |
Investments Valued at Net Asset Value | Developed markets - repurchase agreements | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Investments Valued at Net Asset Value | Emerging markets | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 230.9 | 349.1 |
Investments Valued at Net Asset Value | Emerging markets | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 21.0 | 27.9 |
Investments Valued at Net Asset Value | Hedge funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 3,249.0 | 3,046.8 |
Investments Valued at Net Asset Value | Hedge funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 294.9 | 275.4 |
Investments Valued at Net Asset Value | Equity-like funds | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 3,988.7 | 3,808.8 |
Investments Valued at Net Asset Value | Equity-like funds | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 330.4 | 317.3 |
Investments Valued at Net Asset Value | Cash value of trust owned insurance contract | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Investments Valued at Net Asset Value | Real estate | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 114.2 | 248.3 |
Investments Valued at Net Asset Value | Real estate | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 0.0 | 0.0 |
Investments Valued at Net Asset Value | Other | Defined Benefit Pension Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | 1,142.5 | 779.3 |
Investments Valued at Net Asset Value | Other | Retiree Health Benefit Plans |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Disclosures [Line Items] |  |  |
Fair value of plan assets | $ 107.8 | $ 63.5 |

X
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 55 -Paragraph 17 -URI https://asc.fasb.org/extlink&oid=123450688&loc=d3e4179-114921 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -URI https://asc.fasb.org/extlink&oid=123447040&loc=d3e1928-114920 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlansAndOtherPostretirementBenefitPlansTableTextBlockLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_DefinedBenefitPostretirementHealthCoverageMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanEquitySecuritiesUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanEquitySecuritiesNonUsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=lly_FixedIncomeFundsRepurchasedAgreementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=lly_FixedIncomeFundsEmergingMarketsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_EquityFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_OtherContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanRealEstateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=lly_DefineBenefitPlanOtherMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |