Short-term and Long-term Investments, Restricted Deposits - Schedule of Fair Value of Available-for-Sale Investments in a Continuous Unrealized Loss Position (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Unrealized Losses
Less Than 12 Months	$ (84)	$ (16)
12 Months or More	(643)	(844)
Fair Value
Less Than 12 Months	5,195	1,785
12 Months or More	8,734	11,152
U.S. Treasury securities and obligations of U.S. government corporations and agencies
Unrealized Losses
Less Than 12 Months	(1)	0
12 Months or More	(3)	(8)
Fair Value
Less Than 12 Months	60	79
12 Months or More	144	232
Corporate securities
Unrealized Losses
Less Than 12 Months	(41)	(6)
12 Months or More	(319)	(455)
Fair Value
Less Than 12 Months	2,621	658
12 Months or More	4,782	6,260
Municipal securities
Unrealized Losses
Less Than 12 Months	(16)	(4)
12 Months or More	(135)	(167)
Fair Value
Less Than 12 Months	1,217	553
12 Months or More	2,073	2,237
Asset-backed securities
Unrealized Losses
Less Than 12 Months	(4)	(2)
12 Months or More	(17)	(33)
Fair Value
Less Than 12 Months	301	197
12 Months or More	331	855
Residential mortgage-backed securities
Unrealized Losses
Less Than 12 Months	(18)	(2)
12 Months or More	(111)	(101)
Fair Value
Less Than 12 Months	786	153
12 Months or More	738	814
Commercial mortgage-backed securities
Unrealized Losses
Less Than 12 Months	(4)	(2)
12 Months or More	(58)	(80)
Fair Value
Less Than 12 Months	210	114
12 Months or More	666	754
Short-term time deposits
Unrealized Losses
Less Than 12 Months	0	0
12 Months or More	0	0
Fair Value
Less Than 12 Months	0	31
12 Months or More	$ 0	$ 0

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 326
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-Name Accounting Standards Codification
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Amount of accumulated unrealized loss on investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for 12 months or longer, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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