Long-term Debt and Debt Facility Agreements - Long-term Debt (Detail) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 10,842	$ 10,594
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,469	1,464
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	1,104	1,061
2.00% Guaranteed Notes due 2032
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,098	1,055
0.25% Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	994	955
0.50% Notes due 2031
Debt Instrument [Line Items]
Long-term debt, carrying amount	992	954
4.30% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	847	847
1.00% Guaranteed Notes due 2026
Debt Instrument [Line Items]
Long-term debt, carrying amount	662	635
4.00% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount	523	522
1.40% Senior Notes due 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount	499	499
4.50% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	497
4.85% Senior Notes due 2033
Debt Instrument [Line Items]
Long-term debt, carrying amount	497
7.00% Notes due 2038
Debt Instrument [Line Items]
Long-term debt, carrying amount	200	202
5.95% Notes due 2041
Debt Instrument [Line Items]
Long-term debt, carrying amount	112	112
5.13% Notes due 2043
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 98	98
0.00% Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount		531
3.75% Senior Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount		355
3.70% Notes due 2024
Debt Instrument [Line Items]
Long-term debt, carrying amount		$ 54