Acquisitions and Dispositions of Businesses - Other Significant Activity (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Billions	Dec. 19, 2023	Dec. 31, 2023	Dec. 31, 2022
Business Acquisition [Line Items]
Ordinary shares, nominal value (in dollars per share)		$ 0.01	$ 0.01
NFP
Business Acquisition [Line Items]
Consideration transferred	$ 7
Number of shares issued for acquisition (up to)	20
Ordinary shares, nominal value (in dollars per share)	$ 0.01
Business acquisition, consideration to fund from new debt	$ 7
Business acquisition, consideration to raise in advance of closing	5
Business acquisition, consideration to raise at closing	$ 2