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Long-term Debt - Summary of Long-term Debt (Detail) - USD ($)
$ in Millions
Mar. 31, 2026
Dec. 31, 2025
Debt Instrument [Line Items]    
Long-term debt, carrying amount $ 9,670 $ 9,742
3.90% Senior Notes due 2028    
Debt Instrument [Line Items]    
Long-term debt, carrying amount 1,485 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 1,145 1,172
0.25% Notes due 2027    
Debt Instrument [Line Items]    
Long-term debt, carrying amount 1,035 1,059
0.50% Notes due 2031    
Debt Instrument [Line Items]    
Long-term debt, carrying amount 1,033 1,058
4.30% Senior Notes due 2029    
Debt Instrument [Line Items]    
Long-term debt, carrying amount 848 848
4.50% Senior Notes due 2028    
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 498 497
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 195 195
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