CONSOLIDATED STATEMENT OF EQUITY - USD ($) $ in Millions	Total	Capital Stock	Cap. in Excess of Par Value of Stock	Retained Earnings	Accumulated Other Comprehensive Income/(Loss) (Note 21)	Treasury Stock	Total	Equity Attributable to Non-controlling Interests
Beginning balance at Dec. 31, 2017	$ 35,606	$ 41	$ 21,843	$ 21,906	$ (6,959)	$ (1,253)	$ 35,578	$ 28
Increase (Decrease) in Stockholders' Equity
Net income	1,745	0	0	1,736	0	0	1,736	9
Other comprehensive income/(loss), net of tax	289	0	0	0	290	0	290	(1)
Common stock issued (including share-based compensation impacts)	(2)	0	(2)	0	0	0	(2)	0
Treasury stock/other	(89)	0	0	0	0	(89)	(89)	0
Cash dividends declared	(1,113)	0	0	(1,113)	0	0	(1,113)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	0
Ending balance at Mar. 31, 2018	$ 36,436	41	21,841	22,529	(6,669)	(1,342)	36,400	36
Increase (Decrease) in Stockholders' Equity
Per share dividend of Common and Class B Stock	$ 0.28
Beginning balance at Dec. 31, 2017	$ 35,606	41	21,843	21,906	(6,959)	(1,253)	35,578	28
Increase (Decrease) in Stockholders' Equity
Net income	2,814
Other comprehensive income/(loss), net of tax	(245)
Ending balance at Jun. 30, 2018	36,469	41	21,953	22,993	(7,204)	(1,342)	36,441	28
Beginning balance at Mar. 31, 2018	36,436	41	21,841	22,529	(6,669)	(1,342)	36,400	36
Increase (Decrease) in Stockholders' Equity
Net income	1,069	0	0	1,066	0	0	1,066	3
Other comprehensive income/(loss), net of tax	(534)	0	0	0	(535)	0	(535)	1
Common stock issued (including share-based compensation impacts)	112	0	112	0	0	0	112	0
Treasury stock/other	0	0	0	0	0	0	0	0
Dividends and dividend equivalents declared	(614)	0	0	(602)	0	0	(602)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	(12)
Ending balance at Jun. 30, 2018	$ 36,469	41	21,953	22,993	(7,204)	(1,342)	36,441	28
Increase (Decrease) in Stockholders' Equity
Per share dividend of Common and Class B Stock	$ 0.15
Beginning balance at Dec. 31, 2018	$ 35,966	41	22,006	22,668	(7,366)	(1,417)	35,932	34
Increase (Decrease) in Stockholders' Equity
Adoption of accounting standards	13	0	0	13	0	0	13	0
Net income	1,183	0	0	1,146	0	0	1,146	37
Other comprehensive income/(loss), net of tax	(135)	0	0	0	(135)	0	(135)	0
Common stock issued (including share-based compensation impacts)	20	0	20	0	0	0	20	0
Treasury stock/other	(12)	0	0	0	0	(23)	(23)	35
Dividends and dividend equivalents declared	(601)	0	0	(601)	0	0	(601)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	0
Ending balance at Mar. 31, 2019	$ 36,434	41	22,026	23,226	(7,501)	(1,394)	36,398	36
Increase (Decrease) in Stockholders' Equity
Per share dividend of Common and Class B Stock	$ 0.15
Beginning balance at Dec. 31, 2018	$ 35,966	41	22,006	22,668	(7,366)	(1,417)	35,932	34
Increase (Decrease) in Stockholders' Equity
Net income	1,333
Other comprehensive income/(loss), net of tax	(70)
Ending balance at Jun. 30, 2019	36,136	41	22,111	22,769	(7,436)	(1,388)	36,097	39
Beginning balance at Mar. 31, 2019	36,434	41	22,026	23,226	(7,501)	(1,394)	36,398	36
Increase (Decrease) in Stockholders' Equity
Adoption of accounting standards	0	0	0	0	0	0	0	0
Net income	150	0	0	148	0	0	148	2
Other comprehensive income/(loss), net of tax	65	0	0	0	65	0	65	0
Common stock issued (including share-based compensation impacts)	85	0	85	0	0	0	85	0
Treasury stock/other	(7)	0	0	0	0	(6)	(6)	(1)
Dividends and dividend equivalents declared	(605)	0	0	(605)	0	0	(605)
Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders	0
Ending balance at Jun. 30, 2019	$ 36,136	$ 41	$ 22,111	$ 22,769	$ (7,436)	$ (1,388)	$ 36,097	$ 39
Increase (Decrease) in Stockholders' Equity
Per share dividend of Common and Class B Stock	$ 0.15