Fair Value Measurements and Financial Instruments - Schedule of Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Assets
Marketable securities	$ 2,511
Total short-term investments at fair value	2,507	$ 2,224
Corporate debt securities \| Other assets, noncurrent
Assets
Marketable securities	4	4
Fair Value, Recurring
Assets
Cash equivalents	2,369	2,779
Total short-term investments at fair value	2,507	2,224
Total assets at fair value	6,267	5,522
Liabilities
Total liabilities at fair value	60	31
Fair Value, Recurring \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	55	31
Other liabilities, noncurrent:	5
Fair Value, Recurring \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	27	14
Fair Value, Recurring \| Certificates of deposit
Assets
Marketable securities	172	573
Fair Value, Recurring \| Government bonds
Assets
Marketable securities	333	83
Fair Value, Recurring \| Commercial paper
Assets
Marketable securities	366	574
Fair Value, Recurring \| Corporate debt securities
Assets
Marketable securities	1,491	959
Fair Value, Recurring \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	4	4
Fair Value, Recurring \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	145	34
Fair Value, Recurring \| Equity Securities
Assets
Equity investments		1
Fair Value, Recurring \| Money market funds
Assets
Cash equivalents	2,018	2,326
Funds receivable and amounts held on behalf of customers	1,360	501
Fair Value, Recurring \| Certificates of deposit
Assets
Cash equivalents	1	26
Fair Value, Recurring \| Government bonds
Assets
Cash equivalents	115	32
Fair Value, Recurring \| Commercial paper
Assets
Cash equivalents	223	327
Fair Value, Recurring \| Corporate debt securities
Assets
Cash equivalents	12	68
Fair Value, Recurring \| Level 1
Assets
Cash equivalents	2,018	2,352
Total short-term investments at fair value	0	574
Total assets at fair value	3,378	3,427
Liabilities
Total liabilities at fair value	0	0
Fair Value, Recurring \| Level 1 \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	0	0
Other liabilities, noncurrent:	0
Fair Value, Recurring \| Level 1 \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	0	0
Fair Value, Recurring \| Level 1 \| Certificates of deposit
Assets
Marketable securities	0	573
Fair Value, Recurring \| Level 1 \| Government bonds
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 1 \| Commercial paper
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair Value, Recurring \| Level 1 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 1 \| Equity Securities
Assets
Equity investments		1
Fair Value, Recurring \| Level 1 \| Money market funds
Assets
Cash equivalents	2,018	2,326
Funds receivable and amounts held on behalf of customers	1,360	501
Fair Value, Recurring \| Level 1 \| Certificates of deposit
Assets
Cash equivalents	0	26
Fair Value, Recurring \| Level 1 \| Government bonds
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Commercial paper
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 2
Assets
Cash equivalents	351	427
Total short-term investments at fair value	2,507	1,650
Total assets at fair value	2,885	2,091
Liabilities
Total liabilities at fair value	60	31
Fair Value, Recurring \| Level 2 \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	55	31
Other liabilities, noncurrent:	5
Fair Value, Recurring \| Level 2 \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	27	14
Fair Value, Recurring \| Level 2 \| Certificates of deposit
Assets
Marketable securities	172	0
Fair Value, Recurring \| Level 2 \| Government bonds
Assets
Marketable securities	333	83
Fair Value, Recurring \| Level 2 \| Commercial paper
Assets
Marketable securities	366	574
Fair Value, Recurring \| Level 2 \| Corporate debt securities
Assets
Marketable securities	1,491	959
Fair Value, Recurring \| Level 2 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair Value, Recurring \| Level 2 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	145	34
Fair Value, Recurring \| Level 2 \| Equity Securities
Assets
Equity investments		0
Fair Value, Recurring \| Level 2 \| Money market funds
Assets
Cash equivalents	0	0
Funds receivable and amounts held on behalf of customers	0	0
Fair Value, Recurring \| Level 2 \| Certificates of deposit
Assets
Cash equivalents	1	0
Fair Value, Recurring \| Level 2 \| Government bonds
Assets
Cash equivalents	115	32
Fair Value, Recurring \| Level 2 \| Commercial paper
Assets
Cash equivalents	223	327
Fair Value, Recurring \| Level 2 \| Corporate debt securities
Assets
Cash equivalents	12	68
Fair Value, Recurring \| Level 3
Assets
Cash equivalents	0	0
Total short-term investments at fair value	0	0
Total assets at fair value	4	4
Liabilities
Total liabilities at fair value	0	0
Fair Value, Recurring \| Level 3 \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	0	0
Other liabilities, noncurrent:	0
Fair Value, Recurring \| Level 3 \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	0	0
Fair Value, Recurring \| Level 3 \| Certificates of deposit
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 3 \| Government bonds
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 3 \| Commercial paper
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	4	4
Fair Value, Recurring \| Level 3 \| Mortgage-backed and asset-backed securities
Assets
Marketable securities	0	0
Fair Value, Recurring \| Level 3 \| Equity Securities
Assets
Equity investments		0
Fair Value, Recurring \| Level 3 \| Money market funds
Assets
Cash equivalents	0	0
Funds receivable and amounts held on behalf of customers	0	0
Fair Value, Recurring \| Level 3 \| Certificates of deposit
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Government bonds
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Commercial paper
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities
Assets
Cash equivalents	$ 0	$ 0

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Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Fair value portion of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates.

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Amount of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

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Fair value of financial and nonfinancial obligations.

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