Supplemental financial information - Restructuring charges and other (Details) - USD ($) $ in Millions |
1 Months Ended | 12 Months Ended | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Oct. 31, 2021 |
Dec. 31, 2022 |
Dec. 31, 2021 |
Dec. 31, 2020 |
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Disclosure Text Block Supplement [Abstract] | |||||||||||||
Restructuring charges | [1] | $ 0 | $ 0 | $ 25 | |||||||||
Integration charges | [2] | 257 | 104 | 0 | |||||||||
Gains on sales of assets | $ (50) | 0 | [3] | (50) | [3] | (1) | [3] | ||||||
Restructuring charges/other | $ 257 | $ 54 | $ 24 | ||||||||||
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