Acquisitions and Dispositions - Assets and liabilities classified as held for sale (Details) $ in Millions	Dec. 31, 2023 USD ($)
Current assets
Receivables, net	$ 277
Other current assets	56
Total current assets	333
Noncurrent assets
Property, plant and equipment, net	665
Other assets	188
Total assets of discontinued operations	1,186
Current liabilities
Accounts payable	92
Accrued employee costs	88
Deferred revenue	221
Other current liabilities	34
Total current liabilities	435
Noncurrent liabilities
Employee benefit obligations	163
Other liabilities	74
Total liabilities of discontinued operations	$ 672