Loans Payable, Long-Term Debt and Leases - Long-Term Debt (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Debt Instrument [Line Items]
Long-Term Debt	$ 34,462	$ 33,683
2.15% notes due 2031
Debt Instrument [Line Items]
Stated interest rate	2.15%
Long-Term Debt	$ 1,989	1,988
2.75% notes due 2051
Debt Instrument [Line Items]
Stated interest rate	2.75%
Long-Term Debt	$ 1,980	1,980
3.70% notes due 2045
Debt Instrument [Line Items]
Stated interest rate	3.70%
Long-Term Debt	$ 1,980	1,979
3.40% notes due 2029
Debt Instrument [Line Items]
Stated interest rate	3.40%
Long-Term Debt	$ 1,742	1,740
4.50% notes due 2033
Debt Instrument [Line Items]
Stated interest rate	4.50%
Long-Term Debt	$ 1,509	1,547
1.70% notes due 2027
Debt Instrument [Line Items]
Stated interest rate	1.70%
Long-Term Debt	$ 1,497	1,495
2.90% notes due 2061
Debt Instrument [Line Items]
Stated interest rate	2.90%
Long-Term Debt	$ 1,484	1,484
5.00% notes due 2053
Debt Instrument [Line Items]
Stated interest rate	5.00%
Long-Term Debt	$ 1,482	1,481
4.00% notes due 2049
Debt Instrument [Line Items]
Stated interest rate	4.00%
Long-Term Debt	$ 1,474	1,473
4.15% notes due 2043
Debt Instrument [Line Items]
Stated interest rate	4.15%
Long-Term Debt	$ 1,240	1,240
1.45% notes due 2030
Debt Instrument [Line Items]
Stated interest rate	1.45%
Long-Term Debt	$ 1,240	1,238
2.45% notes due 2050
Debt Instrument [Line Items]
Stated interest rate	2.45%
Long-Term Debt	$ 1,216	1,214
1.875% euro-denominated notes due 2026
Debt Instrument [Line Items]
Stated interest rate	1.875%
Long-Term Debt	$ 1,041	1,103
0.75% notes due 2026
Debt Instrument [Line Items]
Stated interest rate	0.75%
Long-Term Debt	$ 998	996
1.90% notes due 2028
Debt Instrument [Line Items]
Stated interest rate	1.90%
Long-Term Debt	$ 996	995
5.15% notes due 2063
Debt Instrument [Line Items]
Stated interest rate	5.15%
Long-Term Debt	$ 987	987
3.90% notes due 2039
Debt Instrument [Line Items]
Stated interest rate	3.90%
Long-Term Debt	$ 987	986
2.35% notes due 2040
Debt Instrument [Line Items]
Stated interest rate	2.35%
Long-Term Debt	$ 986	985
3.25% euro-denominated notes due 2032
Debt Instrument [Line Items]
Stated interest rate	3.25%
Long-Term Debt	$ 880	0
3.50% euro-denominated notes due 2037
Debt Instrument [Line Items]
Stated interest rate	3.50%
Long-Term Debt	$ 877	0
3.70% euro-denominated notes due 2044
Debt Instrument [Line Items]
Stated interest rate	3.70%
Long-Term Debt	$ 876	0
3.75% euro-denominated notes due 2054
Debt Instrument [Line Items]
Stated interest rate	3.75%
Long-Term Debt	$ 873	0
4.30% notes due 2030
Debt Instrument [Line Items]
Stated interest rate	4.30%
Long-Term Debt	$ 746	745
4.90% notes due 2044
Debt Instrument [Line Items]
Stated interest rate	4.90%
Long-Term Debt	$ 740	740
6.50% notes due 2033
Debt Instrument [Line Items]
Stated interest rate	6.50%
Long-Term Debt	$ 702	707
1.375% euro-denominated notes due 2036
Debt Instrument [Line Items]
Stated interest rate	1.375%
Long-Term Debt	$ 517	548
2.50% euro-denominated notes due 2034
Debt Instrument [Line Items]
Stated interest rate	2.50%
Long-Term Debt	$ 517	548
4.05% notes due 2028
Debt Instrument [Line Items]
Stated interest rate	4.05%
Long-Term Debt	$ 498	497
3.60% notes due 2042
Debt Instrument [Line Items]
Stated interest rate	3.60%
Long-Term Debt	$ 492	492
6.55% notes due 2037
Debt Instrument [Line Items]
Stated interest rate	6.55%
Long-Term Debt	$ 404	406
5.75% notes due 2036
Debt Instrument [Line Items]
Stated interest rate	5.75%
Long-Term Debt	$ 339	339
5.95% debentures due 2028
Debt Instrument [Line Items]
Stated interest rate	5.95%
Long-Term Debt	$ 307	307
5.85% notes due 2039
Debt Instrument [Line Items]
Stated interest rate	5.85%
Long-Term Debt	$ 271	271
6.40% debentures due 2028
Debt Instrument [Line Items]
Stated interest rate	6.40%
Long-Term Debt	$ 251	250
6.30% debentures due 2026
Debt Instrument [Line Items]
Stated interest rate	6.30%
Long-Term Debt	$ 135	135
2.75% notes due 2025
Debt Instrument [Line Items]
Stated interest rate	2.75%
Long-Term Debt	$ 0	2,498
Other
Debt Instrument [Line Items]
Long-Term Debt	$ 209	$ 289