Condensed Consolidated Statements of Changes in Shareholders’ Equity (Parenthetical) $ in Millions	3 Months Ended				6 Months Ended
	Jun. 30, 2024 USD ($) $ / shares	Mar. 31, 2024 USD ($) dividend	Jun. 30, 2023 USD ($) $ / shares	Mar. 31, 2023 USD ($) dividend	Jun. 30, 2024 USD ($) $ / shares	Jun. 30, 2023 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Statement of Stockholders' Equity [Abstract]
Dividends declared per common share (in dollars per share) | $ / shares	$ 0.50		$ 0.48		$ 1.48	$ 1.43
Accumulated other comprehensive loss, cumulative translation losses	$ 3,555	$ 3,438	$ 3,381	$ 3,431	$ 3,555	$ 3,381	$ 3,351	$ 3,491
Accumulated other comprehensive income (loss), unrecognized retirement plan and other retiree benefit costs	$ 636	$ 643	$ 618	$ 624	$ 636	$ 618	$ 647	$ 631
Number of dividends declared per quarter | dividend		2		2