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Business Segments - Business Segment Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2021 | Jun. 30, 2020 | Jun. 30, 2021 | Jun. 30, 2020
Business Segment Information |  |  |  |
Net sales | $ 8,950 | $ 7,176 | $ 17,801 | $ 15,251
Operating Income | 1,971 | 1,740 | 3,965 | 3,403
Gain/(loss) on sale of businesses |  | 387 |  | 389
Divestiture-related restructuring actions |  | (55) |  | (55)
Total operating expenses | 6,979 | 5,436 | 13,836 | 11,848
Other expense (income), net | 33 | 90 | 82 | 165
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Noncontrolling Interest | 1,938 | 1,650 | 3,883 | 3,238
Business Segments. |  |  |  |
Business Segment Information |  |  |  |
Operating Income | 2,013 | 1,443 | 4,054 | 3,205
Business Segments. | Safety and Industrial |  |  |  |
Business Segment Information |  |  |  |
Net sales | 3,254 | 2,657 | 6,581 | 5,584
Operating Income | 718 | 623 | 1,529 | 1,317
Business Segments. | Transportation and Electronics |  |  |  |
Business Segment Information |  |  |  |
Net sales | 2,482 | 1,937 | 5,013 | 4,176
Operating Income | 546 | 360 | 1,137 | 824
Business Segments. | Health Care |  |  |  |
Business Segment Information |  |  |  |
Net sales | 2,278 | 1,823 | 4,526 | 3,927
Operating Income | 576 | 301 | 1,085 | 753
Business Segments. | Consumer |  |  |  |
Business Segment Information |  |  |  |
Net sales | 1,482 | 1,231 | 2,855 | 2,481
Operating Income | 311 | 278 | 600 | 543
Corporate and Unallocated |  |  |  |
Business Segment Information |  |  |  |
Net sales | 1 | 1 | (1) | 1
Significant litigation-related (charges)/benefits |  |  |  | (17)
Gain/(loss) on sale of businesses |  | 387 |  | 389
Other corporate expense - net | 42 | 35 | 89 | 119
Total operating expenses | (42) | 297 | (89) | 198
Elimination of Dual Credit |  |  |  |
Business Segment Information |  |  |  |
Net sales | (547) | (473) | (1,173) | (918)
Operating Income | $ (138) | $ (119) | $ (297) | $ (232)

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