Guarantees - Schedule of Maximum Potential Exposure (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Guarantor Obligations
Under 1 Year	$ 4,138
1-3 Years	154
3-5 Years	17
Over 5 Years	70
Guarantees by Remaining Maturity, Total	4,379	$ 4,317
Letters of credit and surety bonds
Guarantor Obligations
Under 1 Year	4,127
1-3 Years	135
3-5 Years	1
Over 5 Years	0
Guarantees by Remaining Maturity, Total	4,263	4,188
Asset sales guarantee obligations
Guarantor Obligations
Under 1 Year	11
1-3 Years	19
3-5 Years	16
Over 5 Years	48
Guarantees by Remaining Maturity, Total	94	102
Other guarantees
Guarantor Obligations
Under 1 Year	0
1-3 Years	0
3-5 Years	0
Over 5 Years	22
Guarantees by Remaining Maturity, Total	$ 22	$ 27