Consolidated Statements Of Shareholders' Equity (Minority Equity) Parenthetical - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Tax on foreign currency translation	$ (52)	$ (46)	$ 0
Tax on amortization of prior service cost and unrecognized gains and losses included in total benefit cost	34	36	10
Tax on decrease (increase) in net actuarial losses	(19)	(135)	34
Tax on immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures	67	13	1
Tax on prior service credit from plan amendments	0	0	0
Tax on deferred derivative gains	3	1	1
Tax on reclassification adjustment for amounts recognized in income	(3)	(1)	0
Minority Shareholders' Equity - Redeemable
Tax on foreign currency translation	0	0	0
Tax on amortization of prior service cost and unrecognized gains and losses included in total benefit cost	0	0	1
Tax on decrease (increase) in net actuarial losses	0	(6)	1
Tax on immediate recognition of prior service cost and unrecognized gains and losses due to curtailments, settlements, and divestitures	0	0	0
Tax on prior service credit from plan amendments	0	0	0
Tax on deferred derivative gains	0	0	0
Tax on reclassification adjustment for amounts recognized in income	$ 0	$ (1)	$ 0