Stock-Based Compensation - Restricted Stock Units (Details) - USD ($) $ / shares in Units, $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Restricted Stock Units
Stock-Based Compensation
Award vesting period	3 years
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Vested in period, fair value	$ 338	$ 206	$ 86
Restricted Stock Units-Rollover
Units
Non-vested at beginning of period (in shares)	1,349,743
Granted (in shares)	0
Forfeited (in shares)	(42,172)
Vested (in shares)	(978,086)
Non-vested at end of period (in shares)	329,485	1,349,743
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of period (in usd per share)	$ 31.63
Granted (in usd per share)	0
Forfeited (in usd per share)	31.63
Vested (in usd per share)	31.63
Non-vested at end of period (in usd per share)	31.63	$ 31.63
Weighted average grant date fair value (in usd per share)	$ 0
Restricted Stock Units-Rollover | Vivint LTIP
Stock-Based Compensation
Award vesting period	4 years
Restricted Stock Units -Excluding Rollovers
Units
Non-vested at beginning of period (in shares)	2,228,743
Granted (in shares)	914,595
Forfeited (in shares)	(110,306)
Vested (in shares)	(1,143,431)
Non-vested at end of period (in shares)	1,889,601	2,228,743
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Non-vested at beginning of period (in usd per share)	$ 45.19
Granted (in usd per share)	94.37	$ 54.61	$ 35.49
Forfeited (in usd per share)	70.85
Vested (in usd per share)	43.04
Non-vested at end of period (in usd per share)	68.70	45.19
Weighted average grant date fair value (in usd per share)	$ 94.37	$ 54.61	$ 35.49