Leases - Balance Sheet Information Related to Operating & Finance Leases (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease right-of-use assets — net	$ 720	$ 570
Finance lease right-of-use assets — net	$ 108	$ 126
Operating Lease obligations:
Finance Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of operating and finance lease obligations	Current portion of operating and finance lease obligations
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Current portion of operating and finance lease obligations	Current portion of operating and finance lease obligations
Current operating lease obligations	$ 347	$ 200
Long-term operating lease obligations	459	469
Total lease obligations	806	669
Finance Lease Obligations:
Current finance lease obligations	23	21
Long-term finance lease obligations	156	179
Total lease obligations	179	200
Finance lease ROU assets cost	212	212
Finance lease ROU assets accumulated amortization	$ 104	$ 86