Fair Value Measurements (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Assets:
Derivative instruments, Assets	$ 347	$ 591
Liabilities:
Derivative instruments, Liabilities	79	72
Fair Value, Recurring
Assets:
Loan receivable	279	280
Derivative instruments, Assets	347	591
Total	3,571	3,914
Liabilities:
Derivative instruments, Liabilities	79	72
Mortgage and loans payable	671	654
Senior notes	13,815	13,342
Total	14,565	14,068
Fair Value, Recurring \| Money market funds
Assets:
Money market funds	2,160	2,401
Fair Value, Recurring \| Time deposits
Assets:
Money market funds	785	642
Level 1 \| Fair Value, Recurring
Assets:
Loan receivable	0	0
Derivative instruments, Assets	0	0
Total	2,222	2,516
Liabilities:
Derivative instruments, Liabilities	0	0
Mortgage and loans payable	0	0
Senior notes	13,327	12,851
Total	13,327	12,851
Level 1 \| Fair Value, Recurring \| Money market funds
Assets:
Money market funds	2,160	2,401
Level 1 \| Fair Value, Recurring \| Time deposits
Assets:
Money market funds	62	115
Level 2 \| Fair Value, Recurring
Assets:
Loan receivable	0	0
Derivative instruments, Assets	347	591
Total	1,070	1,118
Liabilities:
Derivative instruments, Liabilities	79	72
Mortgage and loans payable	671	654
Senior notes	488	491
Total	1,238	1,217
Level 2 \| Fair Value, Recurring \| Money market funds
Assets:
Money market funds	0	0
Level 2 \| Fair Value, Recurring \| Time deposits
Assets:
Money market funds	723	527
Level 3 \| Fair Value, Recurring
Assets:
Loan receivable	279	280
Derivative instruments, Assets	0	0
Total	279	280
Liabilities:
Derivative instruments, Liabilities	0	0
Mortgage and loans payable	0	0
Senior notes	0	0
Total	0	0
Level 3 \| Fair Value, Recurring \| Money market funds
Assets:
Money market funds	0	0
Level 3 \| Fair Value, Recurring \| Time deposits
Assets:
Money market funds	$ 0	$ 0

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

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