Condensed Consolidated Statement Of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Statement of Comprehensive Income [Abstract]
Net income (loss) including noncontrolling interests	$ 8,033	$ 8,566
Other comprehensive income (net of income taxes)
Foreign exchange translation adjustment	302	(1,267)
Postretirement benefits reserves adjustment (excluding amortization)	(34)	(42)
Amortization and settlement of postretirement benefits reserves adjustment included in net periodic benefit costs	23	9
Total other comprehensive income (loss)	291	(1,300)
Comprehensive income (loss) including noncontrolling interests	8,324	7,266
Comprehensive income (loss) attributable to noncontrolling interests	330	226
Comprehensive income (loss) attributable to ExxonMobil	$ 7,994	$ 7,040