Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Statement of Comprehensive Income [Abstract]
Net income before non-controlling interests	$ 536	$ 507	$ 1,232	$ 1,085
Other comprehensive (loss) income, before tax:
Foreign currency translation adjustments	(529)	290	(301)	525
Unrealized investment gains	0	24	0	19
Gain (loss) related to pension/post-retirement plans	192	(5)	108	28
Other comprehensive (loss) income, before tax	(337)	309	(193)	572
Income tax expense on other comprehensive income	23	13	15	20
Other comprehensive (loss) income, net of tax	(360)	296	(208)	552
Comprehensive income	176	803	1,024	1,637
Less: comprehensive income attributable to non-controlling interest	5	6	11	15
Comprehensive income attributable to the Company	$ 171	$ 797	$ 1,013	$ 1,622

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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