Financial Instruments - Schedule of Information on Available-for-sale Investments (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025	Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 292		$ 292		$ 101
Debt securities, unrealized gains	0		0		0
Debt securities, unrealized losses	0		0		0
Debt securities, fair value	292		292		101
Publicly traded equity securities, fair value	1,274		1,274		1,392
Total debt and publicly traded equity securities, fair value	1,566		1,566		1,493
Unrealized net gains (losses)	(41)	$ 147	86	$ 262
Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	292		292		0
Debt securities, unrealized gains	0		0		0
Debt securities, unrealized losses	0		0		0
Debt securities, fair value	292		292		0
Foreign government bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0		0		1
Debt securities, unrealized gains	0		0		0
Debt securities, unrealized losses	0		0		0
Debt securities, fair value	0		0		1
U.S. government and agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0		0		100
Debt securities, unrealized gains	0		0		0
Debt securities, unrealized losses	0		0		0
Debt securities, fair value	$ 0		$ 0		$ 100

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