Acquisitions and Dispositions - Supplemental Pro Forma Financial Information (Details) - Vivint - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Total operating revenues	$ 29,109	$ 33,225	$ 28,468
Net (loss)/income	$ (3)	$ 1,136	$ 1,574