Acquisitions - Identifiable Assets Acquired, Liabilities Assumed, and Consideration (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024	Dec. 31, 2024	Dec. 31, 2023
Assets
Total assets	$ 51,921	$ 46,333	$ 50,613
Total liabilities	29,564	25,591	27,763
Goodwill	11,475	10,125	$ 11,061	$ 9,158
Acquisitions of businesses, net of cash acquired
Total outflow in the Condensed Consolidated Statements of Cash Flows	585	$ 2,206
Other acquisitions
Assets
Cash and cash equivalents	1
Accounts receivable, net	46
Inventories	24
Other current assets	3
Property, plant and equipment, net	211
Intangible assets, net	21
Operating lease right-of-use assets, net	11
Total assets	317
Accounts payable	29
Accrued expenses	3
Operating lease liabilities	13
Deferred income tax liabilities	11
Other liabilities	15
Total liabilities	71
Total identifiable net assets at fair value	246
Goodwill	340
Total consideration	586
Consideration satisfied by:
Cash payments	586
Total consideration	586
Acquisitions of businesses, net of cash acquired
Cash consideration	586
Less: cash and cash equivalents acquired	(1)
Total outflow in the Condensed Consolidated Statements of Cash Flows	$ 585