Shareholders' Equity and Comprehensive Earnings - AOCI Additional Details (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Amounts Reclassified from AOCI
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest	$ 191	$ 238	$ (18)	$ 265
Gains (losses) on cash flow hedges:
Net sales	2,030	2,172	3,785	4,095
Cost of sales	(1,752)	(1,898)	(3,618)	(3,695)
Selling, general and administrative	(105)	(118)	(213)	(234)
Effective Derivatives | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amounts Reclassified from AOCI
Total before tax effect	(7)		(11)	(2)
Tax benefit (expense) on amounts reclassified into earnings			(2)	1
Recognized gain (loss)	(7)		(13)	(1)
Gains (losses) on cash flow hedges:
Net sales		2	3	1
Cost of sales	(3)	(2)	(10)	(2)
Business consolidation and other activities	(4)		(4)
Effective Derivatives | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss) | Foreign currency contracts
Gains (losses) on cash flow hedges:
Selling, general and administrative	(1)		(1)	(1)
Effective Derivatives | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss) | Cross-currency swap
Gains (losses) on cash flow hedges:
Selling, general and administrative	1		1
Pension and Other Postretirement Benefits. | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amounts Reclassified from AOCI
Total before tax effect	(88)	(11)	(97)	(23)
Tax benefit (expense) on amounts reclassified into earnings	23	4	26	9
Recognized gain (loss)	(65)	(7)	(71)	(14)
Prior service income | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amortization of pension and other postretirement benefits:
Prior service income (cost)	2	1	2	1
Actuarial gains (losses) | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amortization of pension and other postretirement benefits:
Actuarial gains (losses)	$ (90)	$ (12)	$ (99)	$ (24)