Debt - Schedule of Total Debt (Details) - USD ($) $ in Millions	Mar. 31, 2026	Dec. 31, 2025
Short-term debt:
Commercial Paper	$ 1,751	$ 1,035
Total short-term debt	1,751	1,035
Long-term debt:
Total long-term debt	18,619	18,609
Total debt	$ 20,370	19,644
Senior Notes | 2027 Senior Notes (4.00%; due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.00%
Long-term debt:
Senior notes	$ 1,496	1,495
Total debt	$ 1,496
Senior Notes | 2027 Senior Notes (3.10%; due September 15, 2027)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.10%
Long-term debt:
Senior notes	$ 499	499
Total debt	$ 499
Senior Notes | 2028 Senior Notes (3.625%; due September 1, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.625%
Long-term debt:
Senior notes	$ 959	954
Total debt	$ 959
Senior Notes | 2028 Senior Notes (3.75%; due September 21, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.75%
Long-term debt:
Senior notes	$ 598	597
Total debt	$ 598
Senior Notes | 2028 Senior Notes (3.95%; due December 1, 2028)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.95%
Long-term debt:
Senior notes	$ 595	594
Total debt	$ 595
Senior Notes | 2029 Senior Notes (4.35%; due June 15, 2029)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.35%
Long-term debt:
Senior notes	$ 1,245	1,245
Total debt	$ 1,245
Senior Notes | 2030 Senior Notes (2.10%; due June 15, 2030)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.10%
Long-term debt:
Senior notes	$ 1,242	1,242
Total debt	$ 1,242
Senior Notes | 2031 Senior Notes (4.20%; due March 15, 2031)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.20%
Long-term debt:
Senior notes	$ 640	640
Total debt	$ 640
Senior Notes | 2031 Senior Notes (5.25%; due June 15, 2031)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.25%
Long-term debt:
Senior notes	$ 745	745
Total debt	$ 745
Senior Notes | 2032 Senior Notes (1.85%; due September 15, 2032)
Debt Instrument [Line Items]
Interest rate, stated percentage	1.85%
Long-term debt:
Senior notes	$ 1,490	1,489
Total debt	$ 1,490
Senior Notes | 2033 Senior Notes (4.60%; due March 15, 2033)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.60%
Long-term debt:
Senior notes	$ 1,492	1,491
Total debt	$ 1,492
Senior Notes | 2040 Senior Notes (2.65%; due September 15, 2040)
Debt Instrument [Line Items]
Interest rate, stated percentage	2.65%
Long-term debt:
Senior notes	$ 1,234	1,234
Total debt	$ 1,234
Senior Notes | 2048 Senior Notes (4.25%; due September 21, 2048)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.25%
Long-term debt:
Senior notes	$ 1,234	1,234
Total debt	$ 1,234
Senior Notes | 2050 Senior Notes (3.00%; due June 15, 2050)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,224	1,224
Total debt	$ 1,224
Senior Notes | 2052 Senior Notes (4.95%; due June 15, 2052)
Debt Instrument [Line Items]
Interest rate, stated percentage	4.95%
Long-term debt:
Senior notes	$ 1,468	1,468
Total debt	$ 1,468
Senior Notes | 2060 Senior Notes (3.00%; due September 15, 2060)
Debt Instrument [Line Items]
Interest rate, stated percentage	3.00%
Long-term debt:
Senior notes	$ 1,473	1,473
Total debt	$ 1,473
Senior Notes | 2062 Senior Notes (5.20%; due June 15, 2062)
Debt Instrument [Line Items]
Interest rate, stated percentage	5.20%
Long-term debt:
Senior notes	$ 985	$ 985
Total debt	$ 985