Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	[1]	$ 5,124	$ 1,588
Total other noncurrent assets		12,471	13,163
Total assets		226,501	197,205
Total liabilities		$ 1,420	$ 1,889
Derivative asset, statement of financial position		Other current assets, Total other noncurrent assets	Other current assets, Total other noncurrent assets
Derivative liability, statement of financial position		Other current liabilities, Other noncurrent liabilities	Other current liabilities, Other noncurrent liabilities
Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		$ 298	$ 714
Noncurrent derivative assets		402	364
Insurance contracts	[2]	790	665
Total other noncurrent assets		1,191	1,028
Total assets		13,943	25,261
Current derivative liabilities		420	704
Noncurrent derivative liabilities		1,000	1,185
Total liabilities		1,420	1,889
Recurring [Member] | Interest rate contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncurrent derivative assets		144	0
Current derivative liabilities		16	10
Noncurrent derivative liabilities		275	321
Recurring [Member] | Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		298	714
Noncurrent derivative assets		258	364
Current derivative liabilities		404	694
Noncurrent derivative liabilities		725	864
Government and agency debt - non-U.S. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		941	16,195
Government and agency - U.S. [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		2,601	1,313
Corporate and Other [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		1,007	1,586
Level 1 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		0	0
Noncurrent derivative assets		0	0
Insurance contracts	[2]	0	0
Total other noncurrent assets		0	0
Total assets		2,772	2,823
Current derivative liabilities		0	0
Noncurrent derivative liabilities		0	0
Total liabilities		0	0
Level 1 [Member] | Recurring [Member] | Interest rate contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncurrent derivative assets		0	0
Current derivative liabilities		0	0
Noncurrent derivative liabilities		0	0
Level 1 [Member] | Recurring [Member] | Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		0	0
Noncurrent derivative assets		0	0
Current derivative liabilities		0	0
Noncurrent derivative liabilities		0	0
Level 2 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		298	714
Noncurrent derivative assets		402	364
Insurance contracts	[2]	790	665
Total other noncurrent assets		1,191	1,028
Total assets		11,170	22,439
Current derivative liabilities		420	704
Noncurrent derivative liabilities		1,000	1,185
Total liabilities		1,420	1,889
Level 2 [Member] | Recurring [Member] | Interest rate contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Noncurrent derivative assets		144	0
Current derivative liabilities		16	10
Noncurrent derivative liabilities		275	321
Level 2 [Member] | Recurring [Member] | Foreign exchange contracts [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Current derivative assets		298	714
Noncurrent derivative assets		258	364
Current derivative liabilities		404	694
Noncurrent derivative liabilities		725	864
Short-term Investments [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		4,400	18,743
Total short-term investments		9,524	20,331
Short-term Investments [Member] | Money market funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		5,124	1,588
Short-term Investments [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		817	15,915
Short-term Investments [Member] | Government and agency - U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		2,601	1,313
Short-term Investments [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		982	1,514
Short-term Investments [Member] | Level 1 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Total short-term investments		0	0
Short-term Investments [Member] | Level 1 [Member] | Money market funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		0	0
Short-term Investments [Member] | Level 1 [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Short-term Investments [Member] | Level 1 [Member] | Government and agency - U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Short-term Investments [Member] | Level 1 [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Short-term Investments [Member] | Level 2 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		4,400	18,743
Total short-term investments		9,524	20,331
Short-term Investments [Member] | Level 2 [Member] | Money market funds [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities		5,124	1,588
Short-term Investments [Member] | Level 2 [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		817	15,915
Short-term Investments [Member] | Level 2 [Member] | Government and agency - U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		2,601	1,313
Short-term Investments [Member] | Level 2 [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		982	1,514
Long-term Investments [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	[3]	2,779	2,836
Available-for-sale securities, debt securities		150	352
Total long-term investments		2,929	3,188
Long-term Investments [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		124	280
Long-term Investments [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		26	72
Long-term Investments [Member] | Level 1 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	[3]	2,772	2,823
Available-for-sale securities, debt securities		0	0
Total long-term investments		2,772	2,823
Long-term Investments [Member] | Level 1 [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Long-term Investments [Member] | Level 1 [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		0	0
Long-term Investments [Member] | Level 2 [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities	[3]	7	13
Available-for-sale securities, debt securities		150	352
Total long-term investments		156	365
Long-term Investments [Member] | Level 2 [Member] | Government and agency debt - non-U.S. [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		124	280
Long-term Investments [Member] | Level 2 [Member] | Corporate and Other [Member] | Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Available-for-sale securities, debt securities		$ 26	$ 72

[1] Represent money market funds primarily invested in U.S. Treasury and government debt.

[2] Includes life insurance policies held in restricted trusts for U.S. non-qualified employee benefit plans. The underlying invested assets in these contracts are marketable securities, which are carried at fair value, with changes in fair value recognized in Other (income)/deductions—net (see Note 4).

[3] Long-term equity securities of $130 million as of December 31, 2023 and $143 million as of December 31, 2022 were held in restricted trusts for U.S. non-qualified employee benefit plans.