Revision of Previously Issued Financial Statements - Impacts to Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Sep. 30, 2025	Jun. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Jun. 30, 2024	Jan. 01, 2024	Dec. 31, 2023	Jan. 01, 2023
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Assets held for sale	$ 152		$ 3,056
Prepaid expenses and other current assets	911		686
Assets, Current	5,876		7,968
Goodwill	8,264		9,075
Operating lease right-of-use assets	595		589
Other assets	982		907
Total Assets	25,768		28,723
Other current liabilities	1,044		802
Liabilities, Current	4,069		4,352
Deferred income taxes	1,345		1,594
Other liabilities	611		627
Liabilities, Noncurrent	7,426		10,502
Accumulated deficit	(3,345)		(2,647)
Total Shareholders’ Equity	14,241		13,834
Total Shareholders’ Equity including Non-controlling interests	14,273	$ 14,368	13,869	$ 14,782	$ 14,264		$ 14,580
Liabilities and Equity	25,768		28,723
Raw materials	$ 752		627
Previously Reported
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Assets held for sale			3,030				506
Prepaid expenses and other current assets			737				875
Assets, Current			7,993				6,293
Goodwill			9,080				10,635
Operating lease right-of-use assets			573				689
Other assets			837				764
Total Assets			28,667				30,978
Other current liabilities			783				977
Liabilities, Current			4,333				3,758
Deferred income taxes			1,592				1,937
Operating lease liabilities			534				642
Other liabilities			566				560
Liabilities, Noncurrent			10,423				12,578
Accumulated deficit			(2,605)				(2,439)
Total Shareholders’ Equity			13,876				14,611
Total Shareholders’ Equity including Non-controlling interests			13,911			$ 14,642	14,642	$ 17,685
Liabilities and Equity			28,667				30,978
Raw materials			657
Measurement period adjustments
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Assets held for sale			26				0
Prepaid expenses and other current assets			(51)				(8)
Assets, Current			(25)				(8)
Goodwill			(5)				(9)
Operating lease right-of-use assets			16				0
Other assets			70				50
Total Assets			56				33
Other current liabilities			19				11
Liabilities, Current			19				11
Deferred income taxes			2				(7)
Operating lease liabilities			16				0
Other liabilities			61				91
Liabilities, Noncurrent			79				84
Accumulated deficit			(42)				(62)
Total Shareholders’ Equity			(42)				(62)
Total Shareholders’ Equity including Non-controlling interests			(42)				(62)
Liabilities and Equity			56				33
Revision Of Prior Period, Revised Amount
Error Corrections and Prior Period Adjustments Restatement [Line Items]
Assets held for sale			3,056				506
Prepaid expenses and other current assets			686				867
Assets, Current			7,968				6,285
Goodwill			9,075				10,626
Operating lease right-of-use assets			589				689
Other assets			907				814
Total Assets			28,723				31,011
Other current liabilities			802				988
Liabilities, Current			4,352				3,769
Deferred income taxes			1,594				1,930
Operating lease liabilities			550				642
Other liabilities			627				651
Liabilities, Noncurrent			10,502				12,662
Accumulated deficit			(2,647)				(2,501)
Total Shareholders’ Equity			13,834				14,549
Total Shareholders’ Equity including Non-controlling interests			13,869			$ 14,580	14,580	$ 17,647
Liabilities and Equity			$ 28,723				$ 31,011