Borrowings - Carrying Value and Fair Value of Long-Term Borrowings Determined Market Prices EUR/USD Foreign Exchange Rate (Detail) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Maturity Amount	$ 9,950
Unamortized Discount and Debt Issuance Costs	(93)
Carrying Value	9,857	$ 7,918
Fair Value	9,215	$ 7,400
1.25% Notes due 2025 [Member]
Debt Instrument [Line Items]
Maturity Amount	750
Unamortized Discount and Debt Issuance Costs	0
Carrying Value	750
Fair Value	735
3.20% Notes due 2027 [Member]
Debt Instrument [Line Items]
Maturity Amount	700
Unamortized Discount and Debt Issuance Costs	(2)
Carrying Value	698
Fair Value	672
3.25% Notes due 2029 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000
Unamortized Discount and Debt Issuance Costs	(7)
Carrying Value	993
Fair Value	931
4.70% Notes due 2029 [Member]
Debt Instrument [Line Items]
Maturity Amount	500
Unamortized Discount and Debt Issuance Costs	(4)
Carrying Value	496
Fair Value	497
2.40% Notes due 2030 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000
Unamortized Discount and Debt Issuance Costs	(3)
Carrying Value	997
Fair Value	871
1.90% Notes due 2031 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,250
Unamortized Discount and Debt Issuance Costs	(7)
Carrying Value	1,243
Fair Value	1,033
2.10% Notes due 2032 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000
Unamortized Discount and Debt Issuance Costs	(12)
Carrying Value	988
Fair Value	814
4.75% Notes due 2033 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,250
Unamortized Discount and Debt Issuance Costs	(18)
Carrying Value	1,232
Fair Value	1,224
5.00% Notes due 2034 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,000
Unamortized Discount and Debt Issuance Costs	(8)
Carrying Value	992
Fair Value	989
5.25% Notes due 2054 [Member]
Debt Instrument [Line Items]
Maturity Amount	1,500
Unamortized Discount and Debt Issuance Costs	(32)
Carrying Value	1,468
Fair Value	$ 1,449