Acquisitions and Dispositions - Acquisitions Narrative (Details) $ / shares in Units, customer in Millions, $ in Millions		3 Months Ended	9 Months Ended
	Mar. 10, 2023 USD ($) customer $ / shares	Mar. 31, 2023 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2023 USD ($)
Business Acquisition [Line Items]
Proceeds from issuance of preferred stock, net of fees			$ 0	$ 635
Issuance of Series A Preferred Stock		$ 636
Proceeds from credit facilities			$ 1,050	3,020
Vivint Smart Home
Business Acquisition [Line Items]
Customers added (nearly) | customer	2
Acquisition, share price (in usd per share) | $ / shares	$ 12
Cash paid to acquire business	$ 2,609
Consideration	2,623
Acquisition costs				$ 38
Vivint Smart Home | Revolving Credit Facility
Business Acquisition [Line Items]
Proceeds from credit facilities	900
Vivint Smart Home | Series A Preferred Stock
Business Acquisition [Line Items]
Proceeds from issuance of preferred stock, net of fees	635
Issuance of Series A Preferred Stock	$ 650
Preferred stock, dividend rate, percentage	10.25%
Vivint Smart Home | Senior Secured First Lien Notes, due 2033 | Senior Notes
Business Acquisition [Line Items]
Proceeds from issuance of senior notes	$ 724
Debt issuance amount	$ 740
Interest rate, stated percentage	7.00%