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Short-Term Borrowings and Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Carrying Value	$ 76,180	$ 61,473
Commercial Paper [Member]
Debt Instrument [Line Items]
Commercial Paper	1,300	1,088
3.500% notes due February 2024 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	3.50%
Unsecured Debt, Current	$ 0	750
0.550% notes due May 2024 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	0.55%
Unsecured Debt, Current	$ 0	999
2.375% notes due August 2024 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	2.375%
Unsecured Debt, Current	$ 0	750
5.000% notes due October 2024 [Member]
Debt Instrument [Line Items]
Par Value	$ 500
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Unsecured Debt, Current	$ 0	499
3.750% Notes Due July 2025 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	3.75%
Unsecured Debt, Current	$ 1,999
Unsecured Long-term Debt, Noncurrent		1,997
5.150% notes due October 2025 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	5.15%
Unsecured Debt, Current	$ 749
Unsecured Long-term Debt, Noncurrent		748
3.700% notes due December 2025 [Member]
Debt Instrument [Line Items]
Par Value	$ 300
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Unsecured Debt, Current	$ 300
Unsecured Long-term Debt, Noncurrent		299
1.250% notes due January 2026 [Member]
Debt Instrument [Line Items]
Par Value	$ 500
Debt Instrument, Interest Rate, Stated Percentage	1.25%
Unsecured Long-term Debt, Noncurrent	$ 499	498
3.100% notes due March 2026 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	3.10%
Unsecured Long-term Debt, Noncurrent	$ 999	998
1.150% notes due May 2026 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	1.15%
Unsecured Long-term Debt, Noncurrent	$ 953	924
Floating Rate Notes Due July 2026
Debt Instrument [Line Items]
Par Value	500
Unsecured Long-term Debt, Noncurrent	499	0
4.750% notes due July 2026
Debt Instrument [Line Items]
Par Value	$ 650
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Unsecured Long-term Debt, Noncurrent	$ 648	0
3.450% notes due January 2027 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	3.45%
Unsecured Long-term Debt, Noncurrent	$ 749	748
4.600% notes due April 2027
Debt Instrument [Line Items]
Par Value	$ 500
Debt Instrument, Interest Rate, Stated Percentage	4.60%
Unsecured Long-term Debt, Noncurrent	$ 496	0
3.375% notes due April 2027 [Member]
Debt Instrument [Line Items]
Par Value	$ 625
Debt Instrument, Interest Rate, Stated Percentage	3.375%
Unsecured Long-term Debt, Noncurrent	$ 623	622
3.700% notes due May 2027 [Member]
Debt Instrument [Line Items]
Par Value	$ 600
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Unsecured Long-term Debt, Noncurrent	$ 598	598
2.950% notes due October 2027 [Member]
Debt Instrument [Line Items]
Par Value	$ 950
Debt Instrument, Interest Rate, Stated Percentage	2.95%
Unsecured Long-term Debt, Noncurrent	$ 946	944
5.250% notes due February 2028 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	5.25%
Unsecured Long-term Debt, Noncurrent	$ 998	1,011
3.850% notes due June 2028 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,150
Debt Instrument, Interest Rate, Stated Percentage	3.85%
Unsecured Long-term Debt, Noncurrent	$ 1,147	1,146
3.875% notes due December 2028 [Member]
Debt Instrument [Line Items]
Par Value	$ 850
Debt Instrument, Interest Rate, Stated Percentage	3.875%
Unsecured Long-term Debt, Noncurrent	$ 847	846
4.250% notes due January 2029
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Unsecured Long-term Debt, Noncurrent	$ 1,221	1,238
4.700% notes due April 2029
Debt Instrument [Line Items]
Par Value	$ 400
Debt Instrument, Interest Rate, Stated Percentage	4.70%
Unsecured Long-term Debt, Noncurrent	$ 398	0
4.000% notes due May 2029 [Member]
Debt Instrument [Line Items]
Par Value	$ 900
Debt Instrument, Interest Rate, Stated Percentage	4.00%
Unsecured Long-term Debt, Noncurrent	$ 854	862
2.875% notes due August 2029 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	2.875%
Unsecured Long-term Debt, Noncurrent	$ 902	908
4.800% notes due January 2030
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	4.80%
Unsecured Long-term Debt, Noncurrent	$ 1,225	0
5.300% notes due February 2030 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	5.30%
Unsecured Long-term Debt, Noncurrent	$ 1,243	1,275
2.000% notes due May 2030 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	2.00%
Unsecured Long-term Debt, Noncurrent	$ 1,240	1,238
4.900% notes due April 2031
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	4.90%
Unsecured Long-term Debt, Noncurrent	$ 982	0
2.300% notes due May 2031 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	2.30%
Unsecured Long-term Debt, Noncurrent	$ 1,271	1,290
4.950% notes due January 2032
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	4.95%
Unsecured Long-term Debt, Noncurrent	$ 1,489	0
4.200% notes due May 2032 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Unsecured Long-term Debt, Noncurrent	$ 1,372	1,412
5.350% notes due February 2033 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	5.35%
Unsecured Long-term Debt, Noncurrent	$ 1,966	2,046
4.500% notes due April 2033
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	4.50%
Unsecured Long-term Debt, Noncurrent	$ 1,410	1,463
5.000% notes due April 2034
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	5.00%
Unsecured Long-term Debt, Noncurrent	$ 1,214	0
5.150% notes due July 2034
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	5.15%
Unsecured Long-term Debt, Noncurrent	$ 1,959	0
4.625% notes Due July 2035 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Unsecured Long-term Debt, Noncurrent	$ 971	1,014
5.800% notes Due March 2036 [Member]
Debt Instrument [Line Items]
Par Value	$ 850
Debt Instrument, Interest Rate, Stated Percentage	5.80%
Unsecured Long-term Debt, Noncurrent	$ 838	838
6.500% notes Due June 2037 [Member]
Debt Instrument [Line Items]
Par Value	$ 500
Debt Instrument, Interest Rate, Stated Percentage	6.50%
Unsecured Long-term Debt, Noncurrent	$ 492	491
6.625% notes due November 2037 [Member]
Debt Instrument [Line Items]
Par Value	$ 650
Debt Instrument, Interest Rate, Stated Percentage	6.625%
Unsecured Long-term Debt, Noncurrent	$ 641	640
6.875% notes Due Februray 2038 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,100
Debt Instrument, Interest Rate, Stated Percentage	6.875%
Unsecured Long-term Debt, Noncurrent	$ 1,079	1,078
3.500% notes due August 2039 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	3.50%
Unsecured Long-term Debt, Noncurrent	$ 1,243	1,242
2.750% notes due May 2040 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	2.75%
Unsecured Long-term Debt, Noncurrent	$ 970	968
5.700% notes Due October 2040 [Member]
Debt Instrument [Line Items]
Par Value	$ 300
Debt Instrument, Interest Rate, Stated Percentage	5.70%
Unsecured Long-term Debt, Noncurrent	$ 296	296
5.950% notes Due Februrary 2041 [Member]
Debt Instrument [Line Items]
Par Value	$ 350
Debt Instrument, Interest Rate, Stated Percentage	5.95%
Unsecured Long-term Debt, Noncurrent	$ 346	346
3.050% notes due May 2041 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	3.05%
Unsecured Long-term Debt, Noncurrent	$ 1,485	1,484
4.625% notes Due November 2041 [Member]
Debt Instrument [Line Items]
Par Value	$ 600
Debt Instrument, Interest Rate, Stated Percentage	4.625%
Unsecured Long-term Debt, Noncurrent	$ 590	590
4.375% notes Due March 2042 [Member]
Debt Instrument [Line Items]
Par Value	$ 502
Debt Instrument, Interest Rate, Stated Percentage	4.375%
Unsecured Long-term Debt, Noncurrent	$ 487	486
3.950% notes Due October 2042 [Member]
Debt Instrument [Line Items]
Par Value	$ 625
Debt Instrument, Interest Rate, Stated Percentage	3.95%
Unsecured Long-term Debt, Noncurrent	$ 610	609
4.250% notes Due March 2043 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Unsecured Long-term Debt, Noncurrent	$ 737	736
5.500% notes due July 2044
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Unsecured Long-term Debt, Noncurrent	$ 1,475	0
4.750% notes Due July 2045 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Unsecured Long-term Debt, Noncurrent	$ 1,976	1,975
4.200% notes due January 2047 [Member]
Debt Instrument [Line Items]
Par Value	$ 750
Debt Instrument, Interest Rate, Stated Percentage	4.20%
Unsecured Long-term Debt, Noncurrent	$ 739	739
4.250% notes due April 2047 [Member]
Debt Instrument [Line Items]
Par Value	$ 725
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Unsecured Long-term Debt, Noncurrent	$ 718	718
3.750% notes due October 2047 [Member]
Debt Instrument [Line Items]
Par Value	$ 950
Debt Instrument, Interest Rate, Stated Percentage	3.75%
Unsecured Long-term Debt, Noncurrent	$ 935	935
4.250% notes due June 2048 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,350
Debt Instrument, Interest Rate, Stated Percentage	4.25%
Unsecured Long-term Debt, Noncurrent	$ 1,332	1,331
4.450% notes due December 2048 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,100
Debt Instrument, Interest Rate, Stated Percentage	4.45%
Unsecured Long-term Debt, Noncurrent	$ 1,087	1,087
3.700% notes due August 2049 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	3.70%
Unsecured Long-term Debt, Noncurrent	$ 1,237	1,236
2.900% notes due May 2050 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	2.90%
Unsecured Long-term Debt, Noncurrent	$ 1,212	1,211
3.250% notes due May 2051 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	3.25%
Unsecured Long-term Debt, Noncurrent	$ 1,972	1,972
4.750% notes due May 2052 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	4.75%
Unsecured Long-term Debt, Noncurrent	$ 1,966	1,966
5.875% notes due February 2053 [Member]
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	5.875%
Unsecured Long-term Debt, Noncurrent	$ 1,968	1,968
5.050% notes due April 2053
Debt Instrument [Line Items]
Par Value	$ 2,000
Debt Instrument, Interest Rate, Stated Percentage	5.05%
Unsecured Long-term Debt, Noncurrent	$ 1,969	1,969
5.375% Notes due April 2054
Debt Instrument [Line Items]
Par Value	$ 1,750
Debt Instrument, Interest Rate, Stated Percentage	5.375%
Unsecured Long-term Debt, Noncurrent	$ 1,729	0
5.625% notes due July 2054
Debt Instrument [Line Items]
Par Value	$ 2,750
Debt Instrument, Interest Rate, Stated Percentage	5.625%
Unsecured Long-term Debt, Noncurrent	$ 2,724	0
3.875% notes due August 2059 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,250
Debt Instrument, Interest Rate, Stated Percentage	3.875%
Unsecured Long-term Debt, Noncurrent	$ 1,229	1,229
3.125% notes due May 2060 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	3.125%
Unsecured Long-term Debt, Noncurrent	$ 967	966
4.950% notes due May 2062 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,000
Debt Instrument, Interest Rate, Stated Percentage	4.95%
Unsecured Long-term Debt, Noncurrent	$ 981	981
6.050% notes due February 2063 [Member]
Debt Instrument [Line Items]
Par Value	$ 1,500
Debt Instrument, Interest Rate, Stated Percentage	6.05%
Unsecured Long-term Debt, Noncurrent	$ 1,466	1,466
5.200% notes due April 2063
Debt Instrument [Line Items]
Par Value	$ 1,750
Debt Instrument, Interest Rate, Stated Percentage	5.20%
Unsecured Long-term Debt, Noncurrent	$ 1,710	1,709
5.500% Notes due April 2064
Debt Instrument [Line Items]
Par Value	$ 1,100
Debt Instrument, Interest Rate, Stated Percentage	5.50%
Unsecured Long-term Debt, Noncurrent	$ 1,085	0
5.750% notes due July 2064
Debt Instrument [Line Items]
Par Value	$ 1,850
Debt Instrument, Interest Rate, Stated Percentage	5.75%
Unsecured Long-term Debt, Noncurrent	$ 1,822	$ 0

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Carrying value as of the balance sheet date of short-term borrowings using unsecured obligations issued by banks, corporations and other borrowers to investors. The maturities of these money market securities generally do not exceed 270 days.

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