Accumulated Other Comprehensive (Loss) Income (AOCI) (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2020	Mar. 31, 2019
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	$ (606)	$ (631)
OCI	11	70
Income taxes	(26)	(2)
Cost of sales	1,257	1,233
Other (income) expense	(45)	(48)
Income taxes	(97)	(68)
Net OCI	(17)	66
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(623)	(565)
Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	3	(2)
Other (income) expense	(6)	1
Income taxes	1	(1)
Net OCI	(17)	66
Marketable Securities
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(3)	(4)
OCI	1	1
Income taxes	0	0
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(3)	(3)
Marketable Securities | Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0
Other (income) expense	(1)	0
Income taxes	0	0
Net OCI	0	1
Pension Plans
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(179)	(137)
OCI	(6)	(6)
Income taxes	0	1
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(183)	(141)
Pension Plans | Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0
Other (income) expense	3	1
Income taxes	(1)	0
Net OCI	(4)	(4)
Hedges
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	47	50
OCI	(39)	(19)
Income taxes	11	6
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	21	34
Hedges | Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	3	(2)
Other (income) expense	(1)	0
Income taxes	0	(1)
Net OCI	(26)	(16)
Financial Statement Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Accumulated Other Comprehensive Income (Loss), Net of Tax at beginning of period	(471)	(540)
OCI	55	94
Income taxes	(37)	(9)
Accumulated Other Comprehensive Income (Loss), Net of Tax at end of period	(458)	(455)
Financial Statement Translation | Reclassification out of Accumulated Other Comprehensive Income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Cost of sales	0	0
Other (income) expense	(7)	0
Income taxes	2	0
Net OCI	$ 13	$ 85