Variable interest entities - Schedule of carrying amount of assets and liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Assets
Cash and cash equivalents	$ 3,720	$ 6,341	$ 5,936
Accounts receivable, net	4,820	4,507
Inventories	4,755	4,291
Other current assets	749	478
Total current assets	14,083	16,885
Property, plant and equipment, net	21,452	17,841
Goodwill	11,061	9,158	9,199
Intangible assets, net	1,211	1,041
Operating lease right-of-use assets, net	1,274	1,292
Other noncurrent assets	795	632
Total assets	50,613	47,469	45,319
Liabilities
Accounts payable	3,207	3,149
Accrued expenses	2,248	2,296
Current portion of long-term debt	2,882	1,759
Operating lease liabilities	265	255
Other current liabilities	1,577	2,072
Total current liabilities	10,296	10,013
Long-term debt	13,851	11,535
Deferred income tax liabilities	3,105	2,738
Noncurrent operating lease liabilities	1,074	1,125
Other noncurrent liabilities	2,319	2,196
Total liabilities	27,763	25,848	$ 22,279
Variable interest entity, primary beneficiary
Assets
Cash and cash equivalents	21	19
Accounts receivable, net	38	31
Inventories	96	99
Other current assets	58	51
Total current assets	213	200
Property, plant and equipment, net	846	923
Goodwill	190	200
Intangible assets, net	1	0
Operating lease right-of-use assets, net	5	5
Other noncurrent assets	9	11
Total assets	1,264	1,339
Liabilities
Accounts payable	106	92
Accrued expenses	44	36
Current portion of long-term debt	33	98
Operating lease liabilities	1	1
Other current liabilities	25	25
Total current liabilities	209	252
Long-term debt	345	297
Deferred income tax liabilities	94	106
Noncurrent operating lease liabilities	4	5
Other noncurrent liabilities	21	17
Total liabilities	$ 673	$ 677