Consolidated Statement of Comprehensive Income - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Statement of Comprehensive Income [Abstract]
Net Income	$ 2,920	$ 5,759
Defined benefit plans
Reclassification adjustment for amortization of prior service credit included in net income	(9)	(10)
Net change	(9)	(10)
Reclassification adjustment for amortization of net actuarial losses included in net income	23	16
Net change	23	16
Income taxes on defined benefit plans	(3)	(2)
Defined benefit plans, net of tax	11	4
Unrealized holding gain (loss) on securities	6	(4)
Reclassification adjustment for gain included in net income	(1)	0
Income taxes on unrealized holding gain (loss) on securities	(1)	1
Unrealized holding gain (loss) on securities, net of tax	4	(3)
Foreign currency translation adjustments, net of tax	(42)	141
Other Comprehensive Income (Loss), Net of Tax	(27)	142
Comprehensive Income	$ 2,893	$ 5,901