Fair Value Measurements and Financial Instruments (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Assets
Short-term investments	$ 3,049
Corporate debt securities \| Other assets, noncurrent
Assets
Short-term investments	4	$ 4
Fair Value, Recurring
Assets
Cash equivalents	1,822	2,369
Total short-term investments at fair value	3,045	2,507
Total assets at fair value	6,331	6,267
Liabilities
Total liabilities at fair value		60
Fair Value, Recurring \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	20	55
Other liabilities, noncurrent:		5
Fair Value, Recurring \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	114	27
Fair Value, Recurring \| Other assets, noncurrent \| Foreign exchange derivative assets
Assets
Other assets	6
Fair Value, Recurring \| Corporate debt securities
Assets
Short-term investments	2,177	1,491
Fair Value, Recurring \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	4	4
Fair Value, Recurring \| Commercial paper
Assets
Short-term investments	214	366
Fair Value, Recurring \| Government bonds
Assets
Short-term investments	224	333
Fair Value, Recurring \| Certificates of deposit
Assets
Short-term investments	52	172
Fair Value, Recurring \| Mortgage-backed and asset-backed securities
Assets
Short-term investments	378	145
Fair Value, Recurring \| Money market funds
Assets
Cash equivalents	1,635	2,018
Funds receivable and amounts held on behalf of customers	1,340	1,360
Fair Value, Recurring \| Commercial paper
Assets
Cash equivalents	152	223
Fair Value, Recurring \| Government bonds
Assets
Cash equivalents	33	115
Fair Value, Recurring \| Corporate debt securities
Assets
Cash equivalents	2	12
Fair Value, Recurring \| Certificates of deposit
Assets
Cash equivalents		1
Fair Value, Recurring \| Level 1
Assets
Cash equivalents	1,635	2,018
Total short-term investments at fair value	0	0
Total assets at fair value	2,975	3,378
Liabilities
Total liabilities at fair value		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 \| Other assets, noncurrent \| Foreign exchange derivative assets
Assets
Other assets	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair Value, Recurring \| Level 1 \| Commercial paper
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 1 \| Government bonds
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 1 \| Certificates of deposit
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 1 \| Mortgage-backed and asset-backed securities
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 1 \| Money market funds
Assets
Cash equivalents	1,635	2,018
Funds receivable and amounts held on behalf of customers	1,340	1,360
Fair Value, Recurring \| Level 1 \| Commercial paper
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Government bonds
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Corporate debt securities
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 1 \| Certificates of deposit
Assets
Cash equivalents		0
Fair Value, Recurring \| Level 2
Assets
Cash equivalents	187	351
Total short-term investments at fair value	3,045	2,507
Total assets at fair value	3,352	2,885
Liabilities
Total liabilities at fair value		60
Fair Value, Recurring \| Level 2 \| Foreign exchange derivative assets
Liabilities
Accrued expenses, accounts payable, and other current liabilities:	20	55
Other liabilities, noncurrent:		5
Fair Value, Recurring \| Level 2 \| Prepaids and other current assets \| Foreign exchange derivative assets
Assets
Other assets	114	27
Fair Value, Recurring \| Level 2 \| Other assets, noncurrent \| Foreign exchange derivative assets
Assets
Other assets	6
Fair Value, Recurring \| Level 2 \| Corporate debt securities
Assets
Short-term investments	2,177	1,491
Fair Value, Recurring \| Level 2 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	0	0
Fair Value, Recurring \| Level 2 \| Commercial paper
Assets
Short-term investments	214	366
Fair Value, Recurring \| Level 2 \| Government bonds
Assets
Short-term investments	224	333
Fair Value, Recurring \| Level 2 \| Certificates of deposit
Assets
Short-term investments	52	172
Fair Value, Recurring \| Level 2 \| Mortgage-backed and asset-backed securities
Assets
Short-term investments	378	145
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 \| Commercial paper
Assets
Cash equivalents	152	223
Fair Value, Recurring \| Level 2 \| Government bonds
Assets
Cash equivalents	33	115
Fair Value, Recurring \| Level 2 \| Corporate debt securities
Assets
Cash equivalents	2	12
Fair Value, Recurring \| Level 2 \| Certificates of deposit
Assets
Cash equivalents		1
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
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 \| Other assets, noncurrent \| Foreign exchange derivative assets
Assets
Other assets	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities \| Other assets, noncurrent
Assets
Other assets	4	4
Fair Value, Recurring \| Level 3 \| Commercial paper
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 3 \| Government bonds
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 3 \| Certificates of deposit
Assets
Short-term investments	0	0
Fair Value, Recurring \| Level 3 \| Mortgage-backed and asset-backed securities
Assets
Short-term investments	0	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 \| Commercial paper
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Government bonds
Assets
Cash equivalents	0	0
Fair Value, Recurring \| Level 3 \| Corporate debt securities
Assets
Cash equivalents	$ 0	0
Fair Value, Recurring \| Level 3 \| Certificates of deposit
Assets
Cash equivalents		$ 0

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Fair value portion of asset recognized for present right to economic benefit.

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