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Restructuring - Activities by Program (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Reserve [Roll Forward] |  |  |
Expenses | $ 933 |  |
2024 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 0 |  |
Expenses | 190 |  |
(Payments) receipts, net | (13) |  |
Non-cash activity | (62) |  |
Restructuring reserve, ending balance | 115 | $ 0 |
2019 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 513 | 637 |
Expenses | 743 | 666 | $ 868
(Payments) receipts, net | (397) | (449) |
Non-cash activity | (262) | (341) |
Restructuring reserve, ending balance | 597 | 513 | 637
Accelerated Depreciation |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Expenses | 140 |  |
Accelerated Depreciation | 2024 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 0 |  |
Expenses | 0 |  |
(Payments) receipts, net | 0 |  |
Non-cash activity | 0 |  |
Restructuring reserve, ending balance | 0 | 0 |
Accelerated Depreciation | 2019 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 0 | 0 |
Expenses | 140 | 120 | 91
(Payments) receipts, net | 0 | 0 |
Non-cash activity | (140) | (120) |
Restructuring reserve, ending balance | 0 | 0 | 0
Other Exit Costs |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Expenses | 339 |  |
Other Exit Costs | 2024 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 0 |  |
Expenses | 75 |  |
(Payments) receipts, net | (13) |  |
Non-cash activity | (62) |  |
Restructuring reserve, ending balance | 0 | 0 |
Other Exit Costs | 2019 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 34 | 41 |
Expenses | 264 | 334 | 326
(Payments) receipts, net | (145) | (120) |
Non-cash activity | (122) | (221) |
Restructuring reserve, ending balance | 31 | 34 | 41
Separation Costs |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Expenses | 454 |  |
Separation Costs | 2024 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 0 |  |
Expenses | 115 |  |
(Payments) receipts, net | 0 |  |
Non-cash activity | 0 |  |
Restructuring reserve, ending balance | 115 | 0 |
Separation Costs | 2019 Restructuring Program |  |  |
Restructuring Reserve [Roll Forward] |  |  |
Restructuring reserve, beginning balance | 479 | 596 |
Expenses | 339 | 212 | 451
(Payments) receipts, net | (252) | (329) |
Non-cash activity | 0 | 0 |
Restructuring reserve, ending balance | $ 566 | $ 479 | $ 596

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- Definition Amount of cash payments made as the result of exit or disposal activities. Excludes payments associated with a discontinued operation or an asset retirement obligation. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 230 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 17 -Subparagraph (f) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482740/230-10-45-17 + Details
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- Definition Discloses the amount charged against the accrued restructuring reserves, or earnings if not previously accrued, during the period for the specified type of restructuring cost. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(b)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB Topic 5.P.4(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 + Details
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- Definition Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b)(2) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482017/420-10-50-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 420 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SAB TOPIC 5.P.4(b)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479823/420-10-S99-2 + Details
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