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Goodwill and Other Intangibles - Components of Intangible Assets Subject to Amortization (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | $ 6,921 | $ 4,244
Purchases | 519 | 475
Acquisition of businesses | 35 | 2,803
Usage/Sales/Retirements/Transfers | (480) | (474)
Write-off of fully amortized balances | (157) | (72)
Other | (19) | 4
Balance at end of period | 6,540 | 6,921
Less accumulated amortization | (3,632) | (2,994)
Net carrying amount | $ 2,908 | $ 3,927
Weighted average useful life, years | 5 years | 10 years
Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | $ (279) |
Net carrying amount | 81 |
STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | $ (59)
Renewables Energy Certificates |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Carrying value | 213 | 177
Emission Allowances |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 628 | 624
Purchases | 22 | 10
Acquisition of businesses | 0 | 0
Usage/Sales/Retirements/Transfers | (19) | 0
Write-off of fully amortized balances | 0 | (1)
Other | (6) | (5)
Balance at end of period | 625 | 628
Less accumulated amortization | (538) | (533)
Net carrying amount | 87 | 95
Emission Allowances | Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | 0 |
Emission Allowances | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Customer and Supply Contracts |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 609 | 635
Purchases | 0 | 0
Acquisition of businesses | 0 | 0
Usage/Sales/Retirements/Transfers | 0 | 0
Write-off of fully amortized balances | 0 | (28)
Other | (3) | 2
Balance at end of period | 606 | 609
Less accumulated amortization | (399) | (328)
Net carrying amount | 207 | 281
Customer and Supply Contracts | Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | 0 |
Customer and Supply Contracts | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Customer Relationships |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 3,464 | 1,730
Purchases | 0 | 0
Acquisition of businesses | 35 | 1,773
Usage/Sales/Retirements/Transfers | 0 | 0
Write-off of fully amortized balances | (146) | (43)
Other | (5) | 4
Balance at end of period | 3,093 | 3,464
Less accumulated amortization | (1,555) | (1,300)
Net carrying amount | 1,538 | 2,164
Customer Relationships | Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | (255) |
Customer Relationships | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Marketing Partnerships |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 295 | 284
Purchases | 0 | 0
Acquisition of businesses | 0 | 10
Usage/Sales/Retirements/Transfers | 0 | 0
Write-off of fully amortized balances | 0 | 0
Other | (1) | 1
Balance at end of period | 294 | 295
Less accumulated amortization | (193) | (170)
Net carrying amount | 101 | 125
Marketing Partnerships | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Technology |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 860 | 0
Purchases | 0 | 0
Acquisition of businesses | 0 | 860
Usage/Sales/Retirements/Transfers | 0 | 0
Write-off of fully amortized balances | 0 | 0
Other | 1 | 0
Balance at end of period | 861 | 860
Less accumulated amortization | (457) | (230)
Net carrying amount | 404 | 630
Technology | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Trade Names |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 841 | 679
Purchases | 0 | 0
Acquisition of businesses | 0 | 160
Usage/Sales/Retirements/Transfers | 0 | 0
Write-off of fully amortized balances | (11) | 0
Other | (5) | 2
Balance at end of period | 801 | 841
Less accumulated amortization | (443) | (401)
Net carrying amount | 358 | 440
Trade Names | Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | (24) |
Trade Names | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | 0
Other |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Balance at beginning of period | 224 | 292
Purchases | 497 | 465
Acquisition of businesses | 0 | 0
Usage/Sales/Retirements/Transfers | (461) | (474)
Write-off of fully amortized balances | 0 | 0
Other | 0 | 0
Balance at end of period | 260 | 224
Less accumulated amortization | (47) | (32)
Net carrying amount | 213 | 192
Other | Airtron |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron | $ 0 |
Other | STP | Disposal Group, Disposed of by Sale, Not Discontinued Operations |  |
Finite-lived Intangible Assets [Roll Forward] |  |
Sale of Airtron |  | (59)
Net carrying amount |  | $ 47

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