Postretirement Benefit Plans - Plan Assets by Level Three Hierarchy (Details) - USD ($) $ in Millions		Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 421	$ 934	$ 1,061
U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		280	385	389
Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,822	2,813	$ 3,008
Other | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	421	934
Other | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	273	375
Other | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	1,669	2,587
Level 1 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Level 1 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		7	10
Level 1 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		92	120
Level 2 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Level 2 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Level 2 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		61	106
Fixed income securities and cash equivalents | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		272	655
Fixed income securities and cash equivalents | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		182	248
Fixed income securities and cash equivalents | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		1,382	2,220
Fixed income securities and cash equivalents | Other | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	272	655
Fixed income securities and cash equivalents | Other | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	175	238
Fixed income securities and cash equivalents | Other | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	1,282	2,045
Fixed income securities and cash equivalents | Level 1 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Fixed income securities and cash equivalents | Level 1 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		7	10
Fixed income securities and cash equivalents | Level 1 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		40	71
Fixed income securities and cash equivalents | Level 2 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Fixed income securities and cash equivalents | Level 2 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Fixed income securities and cash equivalents | Level 2 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		60	104
Equity securities | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		149	279
Equity securities | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		98	137
Equity securities | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		440	593
Equity securities | Other | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	149	279
Equity securities | Other | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	98	137
Equity securities | Other | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	[1]	387	542
Equity securities | Level 1 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Equity securities | Level 1 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Equity securities | Level 1 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		52	49
Equity securities | Level 2 | U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Equity securities | Level 2 | U.S. | Retiree Health Care
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		0	0
Equity securities | Level 2 | Non-U.S. | Defined Benefit
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets		$ 1	$ 2

[1] Consists of bond index and equity index funds, measured at net asset value per share, as well as cash equivalents.