Long-term Debt - Summary of Long-term Debt (Detail) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 11,140	$ 9,742
3.90% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,488	1,484
2.65% Senior Notes due 2030
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,247	1,247
2.00% Guaranteed Notes due 2032
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,134	1,172
0.25% Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,026	1,059
0.50% Notes due 2031
Debt Instrument [Line Items]
Long-term debt, carrying amount	1,024	1,058
5.15% Senior Notes due 2036
Debt Instrument [Line Items]
Long-term debt, carrying amount	992	0
4.30% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	849	848
4.50% Senior Notes due 2028
Debt Instrument [Line Items]
Long-term debt, carrying amount	498	497
4.55% Senior Notes due 2031
Debt Instrument [Line Items]
Long-term debt, carrying amount	497	0
4.80% Senior Notes due 2033
Debt Instrument [Line Items]
Long-term debt, carrying amount	496	0
5.00% Senior Notes due 2027
Debt Instrument [Line Items]
Long-term debt, carrying amount	0	497
4.85% Senior Notes due 2033
Debt Instrument [Line Items]
Long-term debt, carrying amount	495	495
5.00% Senior Notes due 2029
Debt Instrument [Line Items]
Long-term debt, carrying amount	495	494
5.00% Senior Notes due 2034
Debt Instrument [Line Items]
Long-term debt, carrying amount	488	487
7.00% Notes due 2038
Debt Instrument [Line Items]
Long-term debt, carrying amount	194	195
5.95% Notes due 2041
Debt Instrument [Line Items]
Long-term debt, carrying amount	110	111
5.13% Notes due 2043
Debt Instrument [Line Items]
Long-term debt, carrying amount	98	98
Other
Debt Instrument [Line Items]
Long-term debt, carrying amount	$ 9	$ 0