Fair Value Measurements and Financial Instruments - Schedule of Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Assets:
Total	$ 2,231	$ 788
Liabilities:
Total	5,892	7,999
Other assets
Assets:
Marketable equity securities	295
Fixed income securities
Assets:
Debt securities, available-for-sale, current	27	16
Debt securities, available-for-sale, noncurrent	330	269
Cross currency swaps
Assets:
Derivative asset, current	3
Derivative asset, noncurrent	1,553	500
Liabilities:
Derivative liability, current	229	345
Derivative liability, noncurrent	813	2,344
Foreign exchange forwards
Assets:
Derivative asset, current	18
Liabilities:
Derivative liability, current		5
Interest rate caps
Assets:
Derivative asset, current	5	3
Liabilities:
Derivative liability, current	5	3
Interest rate swaps
Liabilities:
Derivative liability, current	1,878	1,964
Derivative liability, noncurrent	2,912	3,338
Treasury rate locks
Liabilities:
Derivative liability, current	55
Level 1
Assets:
Total	295	0
Liabilities:
Total	0	0
Level 1 | Other assets
Assets:
Marketable equity securities	295
Level 1 | Fixed income securities
Assets:
Debt securities, available-for-sale, current	0	0
Debt securities, available-for-sale, noncurrent	0	0
Level 1 | Cross currency swaps
Assets:
Derivative asset, current	0
Derivative asset, noncurrent	0	0
Liabilities:
Derivative liability, current	0	0
Derivative liability, noncurrent	0	0
Level 1 | Foreign exchange forwards
Assets:
Derivative asset, current	0
Liabilities:
Derivative liability, current		0
Level 1 | Interest rate caps
Assets:
Derivative asset, current	0	0
Liabilities:
Derivative liability, current	0	0
Level 1 | Interest rate swaps
Liabilities:
Derivative liability, current	0	0
Derivative liability, noncurrent	0	0
Level 1 | Treasury rate locks
Liabilities:
Derivative liability, current	0
Level 2
Assets:
Total	1,936	788
Liabilities:
Total	5,892	7,999
Level 2 | Other assets
Assets:
Marketable equity securities	0
Level 2 | Fixed income securities
Assets:
Debt securities, available-for-sale, current	27	16
Debt securities, available-for-sale, noncurrent	330	269
Level 2 | Cross currency swaps
Assets:
Derivative asset, current	3
Derivative asset, noncurrent	1,553	500
Liabilities:
Derivative liability, current	229	345
Derivative liability, noncurrent	813	2,344
Level 2 | Foreign exchange forwards
Assets:
Derivative asset, current	18
Liabilities:
Derivative liability, current		5
Level 2 | Interest rate caps
Assets:
Derivative asset, current	5	3
Liabilities:
Derivative liability, current	5	3
Level 2 | Interest rate swaps
Liabilities:
Derivative liability, current	1,878	1,964
Derivative liability, noncurrent	2,912	3,338
Level 2 | Treasury rate locks
Liabilities:
Derivative liability, current	55
Level 3
Assets:
Total	0	0
Liabilities:
Total	0	0
Level 3 | Other assets
Assets:
Marketable equity securities	0
Level 3 | Fixed income securities
Assets:
Debt securities, available-for-sale, current	0	0
Debt securities, available-for-sale, noncurrent	0	0
Level 3 | Cross currency swaps
Assets:
Derivative asset, current	0
Derivative asset, noncurrent	0	0
Liabilities:
Derivative liability, current	0	0
Derivative liability, noncurrent	0	0
Level 3 | Foreign exchange forwards
Assets:
Derivative asset, current	0
Liabilities:
Derivative liability, current		0
Level 3 | Interest rate caps
Assets:
Derivative asset, current	0	0
Liabilities:
Derivative liability, current	0	0
Level 3 | Interest rate swaps
Liabilities:
Derivative liability, current	0	0
Derivative liability, noncurrent	0	$ 0
Level 3 | Treasury rate locks
Liabilities:
Derivative liability, current	$ 0