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Changes in Capital Structure - Capped Call Options (Details) - USD ($) $ / shares in Units, $ in Millions		3 Months Ended			9 Months Ended
		Sep. 30, 2024	Jun. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Dec. 31, 2023
Option Indexed to Issuer's Equity [Line Items]
Borrowings outstanding		$ 10,858			$ 10,858		$ 10,940
Capped call options	[1]		$ 253
Other income, net		$ 5		$ 14	$ 38	$ 43
Convertible Senior Notes, due 2048 | Senior Notes
Option Indexed to Issuer's Equity [Line Items]
Capped call, convertible debt, conversion, premium			257
Borrowings outstanding			$ 232
Convertible Senior Notes Capped Calls | Senior Notes
Option Indexed to Issuer's Equity [Line Items]
Capped calls, strike price (in usd per share)			$ 41.11
Capped call cap price (in usd per share)			$ 249.00
Capped calls option price			$ 257
Other income, net			4
Additional Paid-In Capital
Option Indexed to Issuer's Equity [Line Items]
Capped call options	[1]		253
Additional Paid-In Capital | Convertible Senior Notes Capped Calls | Senior Notes
Option Indexed to Issuer's Equity [Line Items]
Capped call options			$ 253
[1] For further discussion of the Capped Call Options, see Note 9, Changes in Capital Structure

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