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Debt - Schedule of Total Debt (Details) - USD ($)	Jun. 30, 2024	Jun. 05, 2024	May 13, 2024	Dec. 31, 2023
Short-term debt:
Commercial Paper	$ 1,987,000,000			$ 1,954,000,000
Total short-term debt	3,234,000,000			1,954,000,000
Long-term debt:
Total long-term debt	18,573,000,000			20,659,000,000
Total debt	21,807,000,000			22,613,000,000
2025 Senior Notes (3.65%; unsecured due May 23, 2025)
Short-term debt:
Senior notes	1,247,000,000			0
Line of Credit \| 2025 Term Loan due August 31, 2025
Long-term debt:
Senior notes	$ 0			1,600,000,000
Senior Notes \| 2025 Senior Notes (3.65%; unsecured due May 23, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.65%
Long-term debt:
Senior notes	$ 0			1,246,000,000
Total debt	$ 1,247,000,000
Senior Notes \| 2025 Senior Notes (3.75%; unsecured due December 1, 2025)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%
Long-term debt:
Senior notes	$ 1,249,000,000			1,248,000,000
Total debt	$ 1,249,000,000
Senior Notes \| 2027 Senior Notes (4.00%; unsecured due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%
Long-term debt:
Senior notes	$ 1,490,000,000			1,489,000,000
Total debt	$ 1,490,000,000
Senior Notes \| 2027 Senior Notes (3.10%; unsecured due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.10%
Long-term debt:
Senior notes	$ 498,000,000			498,000,000
Total debt	$ 498,000,000
Senior Notes \| 2028 Senior Notes (3.625%; unsecured due September 1, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.625%	3.625%
Long-term debt:
Senior notes	$ 929,000,000	$ 1,000,000,000		920,000,000
Total debt	$ 929,000,000
Senior Notes \| 2028 Senior Notes (3.75%; unsecured due September 21, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%
Long-term debt:
Senior notes	$ 596,000,000			596,000,000
Total debt	$ 596,000,000
Senior Notes \| 2029 Senior Notes (4.35%; unsecured due June 15, 2029)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.35%
Long-term debt:
Senior notes	$ 1,242,000,000			1,241,000,000
Total debt	$ 1,242,000,000
Senior Notes \| 2030 Senior Notes (2.10%; unsecured due June 15, 2030)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.10%
Long-term debt:
Senior notes	$ 1,239,000,000			1,238,000,000
Total debt	$ 1,239,000,000
Senior Notes \| 2031 Senior Notes (5.25%; unsecured due June 15, 2031)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.25%		5.25%
Long-term debt:
Senior notes	$ 743,000,000			0
Total debt	$ 743,000,000
Senior Notes \| 2032 Senior Notes (1.85%; unsecured due September 15, 2032)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.85%
Long-term debt:
Senior notes	$ 1,487,000,000			1,486,000,000
Total debt	$ 1,487,000,000
Senior Notes \| 2033 Senior Notes (4.60%; unsecured due March 15, 2033)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.60%
Long-term debt:
Senior notes	$ 1,490,000,000			1,489,000,000
Total debt	$ 1,490,000,000
Senior Notes \| 2040 Senior Notes (2.65%; unsecured due September 15, 2040)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.65%
Long-term debt:
Senior notes	$ 1,233,000,000			1,232,000,000
Total debt	$ 1,233,000,000
Senior Notes \| 2048 Senior Notes (4.25%; unsecured due September 21, 2048)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.25%
Long-term debt:
Senior notes	$ 1,232,000,000			1,232,000,000
Total debt	$ 1,232,000,000
Senior Notes \| 2050 Senior Notes (3.00%; unsecured due June 15, 2050)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,223,000,000			1,222,000,000
Total debt	$ 1,223,000,000
Senior Notes \| 2052 Senior Notes (4.95%; unsecured due June 15, 2052)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.95%
Long-term debt:
Senior notes	$ 1,466,000,000			1,466,000,000
Total debt	$ 1,466,000,000
Senior Notes \| 2060 Senior Notes (3.00%; unsecured due September 15, 2060)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,472,000,000			1,472,000,000
Total debt	$ 1,472,000,000
Senior Notes \| 2062 Senior Notes (5.20%; unsecured due June 15, 2062)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.20%
Long-term debt:
Senior notes	$ 984,000,000			$ 984,000,000
Total debt	$ 984,000,000