Borrowings Total Borrowings Excluding Market Value Adjustments, Scheduled Maturities (Detail) $ in Millions	Sep. 30, 2023 USD ($)
Maturities of Long-term Debt [Abstract]
2024	$ 4,382
2025	3,728
2026	4,578
2027	2,921
2028	1,599
Thereafter	29,204
Total borrowings	46,412
Estimated Future Interest Payment [Abstract]
2024	1,733
2025	1,626
2026	1,616
2027	1,506
2028	1,502
Thereafter	16,935
Long-Term Debt, Expected Interest Payment, Gross	24,918
Maturities of Long-term Debt and Interest [Abstract]
2024	6,115
2025	5,354
2026	6,194
2027	4,427
2028	3,101
Thereafter	46,139
Long-Term Debt, Principal and Interest Payments, Gross	71,330
Before Asia Theme Parks Consolidation
Maturities of Long-term Debt [Abstract]
2024	4,369
2025	3,619
2026	4,578
2027	2,921
2028	1,599
Thereafter	28,018
Total borrowings	45,104
Asia Theme Parks and Adjustments
Maturities of Long-term Debt [Abstract]
2024	13
2025	109
2026	0
2027	0
2028	0
Thereafter	1,186
Total borrowings	$ 1,308

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