Equity and Accumulated Other Comprehensive Earnings (Loss) - Equity Activity (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 3,957	$ 3,554	$ 3,685	$ 3,337
Balance at beginning of period (in shares)			360,101,024
Net earnings (loss)	(165)	202	$ 282	402
Other comprehensive earnings (loss), net of tax	265	100	236	157
Common dividends, net of tax benefits	(63)	(48)	(128)	(98)
Treasury stock purchases	(476)	(139)	(578)	(149)
Treasury shares re-issued	8	8	17	16
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged	6	24	12	36
Other activity	1		7
Balance at end of the period	$ 3,533	3,701	$ 3,533	3,701
Balance at end of period (in shares)	367,399,061		367,399,061
Common Stock
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 1,226	$ 1,171	$ 1,220	$ 1,167
Balance at beginning of period (in shares)	681,736,000	680,014,000	680,945,000	679,524,000
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged	$ 6	$ 24	$ 12	$ 28
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged (in shares)	130,000	232,000	921,000	722,000
Balance at end of the period	$ 1,232	$ 1,195	$ 1,232	$ 1,195
Balance at end of the period (in shares)	681,866,000	680,246,000	681,866,000	680,246,000
Treasury Stock
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ (3,941)	$ (3,124)	$ (3,854)	$ (3,130)
Balance at beginning of period (in shares)	(361,097,000)	(351,899,000)	(360,101,000)	(351,939,000)
Treasury stock purchases	$ (476)	$ (139)	$ (578)	$ (149)
Treasury stock purchases (in shares)	(6,316,000)	(1,651,000)	(7,463,000)	(1,772,000)
Treasury shares re-issued	$ 8	$ 8	$ 17	$ 16
Treasury shares re-issued (in shares)	14,000	75,000	165,000	236,000
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged				$ 8
Other activity	$ 1		$ 7
Balance at end of the period	$ (4,408)	$ (3,255)	$ (4,408)	$ (3,255)
Balance at end of period (in shares)	(367,399,000)	(353,475,000)	(367,399,000)	(353,475,000)
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 7,224	$ 6,342	$ 6,843	$ 6,192
Net earnings (loss)	(174)	202	272	402
Common dividends, net of tax benefits	(63)	(48)	(128)	(98)
Balance at end of the period	6,987	6,496	6,987	6,496
Accumulated Other Comprehensive Earnings (Loss).
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	(611)	(897)	(582)	(954)
Other comprehensive earnings (loss), net of tax	265	100	236	157
Balance at end of the period	(346)	(797)	(346)	(797)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	59	62	58	62
Net earnings (loss)	9		10
Balance at end of the period	$ 68	$ 62	$ 68	$ 62