Equity and Accumulated Other Comprehensive Earnings - AOCI Additional Details (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Gains (losses) on cash flow hedges
Net sales	$ 2,785	$ 2,785
Cost of sales (excluding depreciation and amortization)	(2,253)	(2,237)
Selling, general and administrative	(127)	(112)
Earnings before taxes	140	152
Tax benefit (expense) on amounts reclassified into earnings	(10)	(34)
Net earnings	117	125
Derivatives Designated as Hedges | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Gains (losses) on cash flow hedges
Earnings before taxes	24	(19)
Tax benefit (expense) on amounts reclassified into earnings	(6)	5
Net earnings	18	(14)
Derivatives Designated as Hedges | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss) | Commodity contracts
Gains (losses) on cash flow hedges
Net sales	2	(3)
Cost of sales (excluding depreciation and amortization)	(5)	10
Derivatives Designated as Hedges | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss) | Foreign currency contracts
Gains (losses) on cash flow hedges
Selling, general and administrative	23	(29)
Derivatives Designated as Hedges | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss) | Cross-currency swap
Gains (losses) on cash flow hedges
Interest expense	4	3
Pension and Other Postretirement Benefits (Net of Tax) | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amortization Of Pension And Other Postretirement Benefits:
Total before tax effect	(5)	(9)
Tax benefit (expense) on amounts reclassified into earnings	1	2
Recognized gain (loss), net of tax	(4)	(7)
Actuarial gains (losses) | Amount Reclassified from Accumulated Other Comprehensive Earnings (Loss)
Amortization Of Pension And Other Postretirement Benefits:
Total before tax effect	$ (5)	$ (9)