Equity and Accumulated Other Comprehensive Earnings - Equity activity (Details) - USD ($) shares in Thousands, $ in Millions		3 Months Ended		5 Months Ended	9 Months Ended
	Jan. 01, 2019	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2019	Sep. 30, 2018
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 3,562	$ 3,564	$ 3,995		$ 3,562	$ 4,084
Net earnings		92	59		406	304
Other comprehensive earnings (loss), net of tax, excluding currency translation on assets transferred to held for sale		36	(33)		153	(144)
Currency translation recognized in earnings as a result of the transfer of the Argentina steel aerosol business to held for sale		45			45
Reclassification of stranded tax effects	79
Common dividends, net of tax benefits		(49)	(34)		(133)	(104)
Treasury stock purchases		(232)	(269)		(612)	(471)
Treasury stock purchases (in shares)				(3,800)
Treasury shares reissued		7	7		19	18
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged		7	21		22	57
Other activity		(5)	(1)		3	1
Balance at end of the period		3,465	3,745	$ 3,465	3,465	3,745
Common Stock
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 1,157	$ 1,172	$ 1,120		$ 1,157	$ 1,084
Balance (in shares)	673,237	675,463	672,070		673,237	670,576
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged		$ 7	$ 21		$ 22	$ 57
Shares issued and stock compensation for stock options and other stock plans, net of shares exchanged (in shares)		588	629		2,814	2,123
Other activity		$ (2)	$ 1		$ (2)	$ 1
Balance at end of the period		$ 1,177	$ 1,142	$ 1,177	$ 1,177	$ 1,142
Balance (in shares)		676,051	672,699	676,051	676,051	672,699
Treasury Stock, Common
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ (2,205)	$ (2,566)	$ (1,663)		$ (2,205)	$ (1,474)
Balance (in shares)	337,979	343,623	325,459		337,979	320,695
Treasury stock purchases		$ (232)	$ (269)		$ (612)	$ (471)
Treasury stock purchases (in shares)		(3,296)	(6,731)		(9,470)	(11,990)
Treasury shares reissued		$ 7	$ 7		$ 19	$ 18
Treasury shares reissued (in shares)		64	172		594	667
Other activity		$ 1	$ (1)		$ 8	$ 1
Balance at end of the period		$ (2,790)	$ (1,926)	$ (2,790)	$ (2,790)	$ (1,926)
Balance (in shares)		346,855	332,018	346,855	346,855	332,018
Retained Earnings
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 5,341	$ 5,651	$ 5,199		$ 5,341	$ 5,024
Net earnings		92	59		406	303
Reclassification of stranded tax effects					79
Common dividends, net of tax benefits		(49)	(34)		(133)	(104)
Other activity					1	1
Balance at end of the period		5,694	5,224	$ 5,694	5,694	5,224
Accumulated Other Comprehensive Earnings (Loss)
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	(835)	(797)	(767)		(835)	(655)
Other comprehensive earnings (loss), net of tax, excluding currency translation on assets transferred to held for sale		36	(33)		153	(144)
Currency translation recognized in earnings as a result of the transfer of the Argentina steel aerosol business to held for sale		45			45
Reclassification of stranded tax effects					(79)
Other activity						(1)
Balance at end of the period		(716)	(800)	(716)	(716)	(800)
Noncontrolling Interest
Increase (Decrease) in Stockholders' Equity
Balance at beginning of the period	$ 104	104	106		104	105
Net earnings						1
Other activity		(4)	(1)		(4)	(1)
Balance at end of the period		$ 100	$ 105	$ 100	$ 100	$ 105