Discontinued Operations Discontinued Operations - Assets and Liabilities Held for Sale, Adient spin-off (Details) - USD ($) $ in Millions	Dec. 31, 2016	Sep. 30, 2016
Assets and Liabilities Held for Sale [Line Items]
Assets held for sale	$ 173	$ 5,812
Noncurrent assets held for sale	0	7,374
Liabilities held for sale	31	4,276
Noncurrent liabilities held for sale	$ 0	3,888
Security business in South Africa [Member]
Assets and Liabilities Held for Sale [Line Items]
Cash		105
Cash in escrow related to Adient debt		2,034
Accounts receivable - net		2,071
Inventories		672
Other current assets		756
Assets held for sale		5,638
Property, plant and equipment - net		2,240
Goodwill		2,385
Other intangible assets - net		113
Investments in partially-owned affiliates		1,745
Other noncurrent assets		891
Noncurrent assets held for sale		7,374
Short-term debt		41
Current portion of long-term debt		38
Accounts payable		2,764
Accrued compensation and benefits		430
Other current liabilities		975
Liabilities held for sale		4,248
Long-term debt		3,441
Pension and postretirement benefits		188
Other noncurrent liabilities		259
Noncurrent liabilities held for sale		$ 3,888