Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Sep. 30, 2015		Sep. 30, 2014		Sep. 30, 2015		Sep. 30, 2014
Equity [Abstract]
Cumulative translation adjustments, before-tax	$ (352)		$ (362)		$ (628)		$ (372)
Cumulative translation adjustment, net-of-tax	(341)		(365)		(626)		(383)
Retirement plans and other retiree benefits:
Net actuarial gains (losses) and prior service costs arising during the period, before-tax	14		(43)		13		(40)
Net actuarial gains (losses) and prior service costs arising during the period, net-of-tax	9		(26)		8		(24)
Amortization of net actuarial loss, transition & prior service costs, before-tax	22	[1]	17	[1]	66	[2]	45	[2]
Amortization of net actuarial loss, transition & prior service costs, net-of-tax	16	[1]	9	[1]	44	[2]	28	[2]
Retirement Plan and other retiree benefit adjustments, before-tax	36		(26)		79		5
Retirement Plan and other retiree benefit adjustments, net-of-tax	25		(17)		52		4
Available-for-sale securities:
Unrealized gains (losses) on available-for-sale securities, before-tax	(7)	[3]	(62)	[3]	(27)	[4]	(354)	[4]
Unrealized gains (losses) on available-for-sale securities, net-of-tax	(5)	[3]	(40)	[3]	(18)	[4]	(230)	[4]
Reclassification of (gains) losses into net earnings on available-for-sale securities, before-tax	7	[5]	56	[5]	14	[6]	267	[6]
Reclassification of (gains) losses into net earnings on available-for-sale securities, net-of-tax	5	[5]	36	[5]	10	[6]	174	[6]
Gains (losses) on available-for-sale securities, before-tax	0		(6)		(13)		(87)
Gains (losses) on available-for-sale securities, net-of-tax	0		(4)		(8)		(56)
Cash flow hedges:
Unrealized gains (losses) on cash flow hedges, before-tax	16		5		17		(1)
Unrealized gains (losses) on cash flow hedges, net-of-tax	11		2		12		(1)
Reclassification of (gains) losses into net earnings on cash flow hedges, before-tax	(5)	[7]	2	[7]	(12)	[8]	(1)	[8]
Reclassification of (gains) losses into net earnings on cash flow hedges, net-of-tax	(4)	[7]	1	[7]	(8)	[8]	0	[8]
Gains (losses) on cash flow hedges, before-tax	11		7		5		(2)
Gains (losses) on cash flow hedges, net-of-tax	7		3		4		(1)
Total other comprehensive income (loss), before-tax	(305)		(387)		(557)		(456)
Total other comprehensive income (loss), net-of-tax	(309)		(383)		(578)		(436)
Remeasurement Due To Change in Foreign Exchange Rates [Abstract]
Loss (gain) related to the remeasurement of fixed interest rate and devaluation-protected bonds in Venezuela	$ 22		$ 52		$ 50		$ 324

[1] These components of Other comprehensive income (loss) are included in the computation of total pension cost. See Note 10, Retirement Plans and Other Retiree Benefits for additional details.

[2] These components of Other comprehensive income (loss) are included in the computation of total pension cost. See Note 10, Retirement Plans and Other Retiree Benefits for additional details.

[3] For the three months ended September 30, 2015, these amounts included a pretax loss of $22 related to the remeasurement of the bolivar-denominated fixed interest rate bonds and the devaluation-protected bonds in Venezuela. For the three months ended September 30, 2014, these amounts included a pretax loss of $52 related to the remeasurement of the bolivar-denominated fixed interest rate bonds and the devaluation-protected bonds in Venezuela.

[4] For the nine months ended September 30, 2015, these amounts included a pretax loss of $50 related to the remeasurement of the bolivar-denominated fixed interest rate bonds and the devaluation-protected bonds in Venezuela. For the nine months ended September 30, 2014, these amounts included a pretax loss of $324 related to the remeasurement of the bolivar-denominated fixed interest rate bonds and the devaluation-protected bonds in Venezuela. See Note 14, Fair Value Measurements and Financial Instruments for additional details.

[5] Represents reclassification of losses on the Venezuela bonds into Other (income) expense, net due to an impairment in the fair value of the bonds as a result of the effective devaluation in the third quarter of 2015. See Note 14, Fair Value Measurements and Financial Instruments for additional details.

[6] Represents reclassification of losses on the Venezuela bonds into Other (income) expense, net due to an impairment in the fair value of the bonds as a result of the effective devaluations in the second and third quarters of 2015 and the first quarter of 2014. See Note 14, Fair Value Measurements and Financial Instruments for additional details.

[7] These (gains) losses are reclassified into Cost of sales. See Note 14, Fair Value Measurements and Financial Instruments for additional details.

[8] These (gains) losses are reclassified into Cost of sales. See Note 14, Fair Value Measurements and Financial Instruments for additional details.