Condensed Consolidated Statements of Changes in Shareholders’ Equity (Parenthetical) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023 USD ($) $ / shares	Jun. 30, 2022 USD ($) $ / shares	Jun. 30, 2023 USD ($) dividend $ / shares	Jun. 30, 2022 USD ($) dividend $ / shares	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Mar. 31, 2022 USD ($)	Dec. 31, 2021 USD ($)
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.48	$ 0.47	$ 1.43	$ 1.39
Accumulated other comprehensive loss, cumulative translation losses	$ 3,381	$ 3,398	$ 3,381	$ 3,398	$ 3,431	$ 3,491	$ 3,269	$ 3,349
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	$ 618	$ 1,015	$ 618	$ 1,015	$ 624	$ 631	$ 1,030	$ 1,044
Number of dividends declared per quarter | dividend			2	2