Long-term Debt and Debt Facility Agreements - Long-term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 11,023	$ 10,842
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,478	1,469
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,250	1,250
1.375% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,040	1,104
2.00% Guaranteed Notes due 2032
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,034	1,098
0.25% Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	936	994
0.50% Notes due 2031
Debt Instrument [Line Items]
Long-term debt, carrying amount	935	992
4.30% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	848	847
1.00% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	624	662
4.50% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	497	497
4.85% Senior Notes due 2033
Debt Instrument [Line Items]
Long-term debt, carrying amount	498	497
5.00% Senior Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	495
5.00% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	493
5.00% Senior Notes due 2034
Debt Instrument [Line Items]
Long-term debt, carrying amount	489
7.00% Notes due 2038
Debt Instrument [Line Items]
Long-term debt, carrying amount	197	200
5.95% Notes due 2041
Debt Instrument [Line Items]
Long-term debt, carrying amount	111	112
5.13% Notes due 2043
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 98	98
4.00% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount		523
1.40% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount		$ 499