Debt and Financing Arrangements Long-Term Debt (Details)	3 Months Ended
	Sep. 30, 2016 USD ($)	Sep. 30, 2016 EUR (€)	Sep. 30, 2015 USD ($)	Sep. 30, 2015 EUR (€)
Debt Instrument [Line Items]
Other Long-term Debt	$ 39,000,000		$ 57,000,000
Long-term Debt and Capital Lease Obligations, Including Current Maturities	8,821,000,000		6,558,000,000
Less: current portion	628,000,000		813,000,000
Net long-term debt	$ 8,193,000,000		$ 5,745,000,000
5.5 % Due in 2016
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.50%	5.50%	5.50%	5.50%
Debt instrument, face amount	$ 800,000,000		$ 800,000,000
Long-term Debt	$ 0		$ 800,000,000
7.125 % Due in 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	7.125%	7.125%	7.125%	7.125%
Debt instrument, face amount	$ 150,000,000		$ 150,000,000
Long-term Debt	$ 149,000,000		$ 153,000,000
2.6 % Due in 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.60%	2.60%	2.60%	2.60%
Debt instrument, face amount	$ 400,000,000		$ 400,000,000
Long-term Debt	$ 404,000,000		$ 404,000,000
2.355 % Due in 2017
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	2.355%	2.355%	2.355%	2.355%
Debt instrument, face amount	$ 46,000,000		$ 46,000,000
Long-term Debt	$ 46,000,000		$ 46,000,000
1.4% Due in 2018
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	1.40%	1.40%	1.40%	1.40%
Debt instrument, face amount	$ 300,000,000		$ 300,000,000
Long-term Debt	$ 301,000,000		$ 303,000,000
5.0 % Due in 2020
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.00%	5.00%	5.00%	5.00%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
Long-term Debt	$ 499,000,000		$ 499,000,000
4.25% Due in 2021
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.25%	4.25%	4.25%	4.25%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
Long-term Debt	$ 498,000,000		$ 498,000,000
3.75 % Due in 2022
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.75%	3.75%	3.75%	3.75%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
Long-term Debt	$ 448,000,000		$ 448,000,000
3.625% Due in 2024
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.625%	3.625%	3.625%	3.625%
Debt instrument, face amount	$ 500,000,000		$ 500,000,000
Long-term Debt	$ 500,000,000		$ 500,000,000
6.0 % Due in 2036
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.00%	6.00%	6.00%	6.00%
Debt instrument, face amount	$ 400,000,000		$ 400,000,000
Long-term Debt	$ 396,000,000		$ 395,000,000
5.7 % Due in 2041
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.70%	5.70%	5.70%	5.70%
Debt instrument, face amount	$ 300,000,000		$ 300,000,000
Long-term Debt	$ 299,000,000		$ 299,000,000
5.25 % Due in 2042
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	5.25%	5.25%	5.25%	5.25%
Debt instrument, face amount	$ 250,000,000		$ 250,000,000
Long-term Debt	$ 250,000,000		$ 250,000,000
4.625% Due in 2044
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.625%	4.625%	4.625%	4.625%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
Long-term Debt	$ 447,000,000		$ 447,000,000
6.95 % Due in 2046
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	6.95%	6.95%	6.95%	6.95%
Debt instrument, face amount	$ 125,000,000		$ 125,000,000
Long-term Debt	$ 125,000,000		$ 125,000,000
4.95% Due in 2064
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.95%	4.95%	4.95%	4.95%
Debt instrument, face amount	$ 450,000,000		$ 450,000,000
Long-term Debt	$ 449,000,000		$ 449,000,000
Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.50%	3.50%
Debt instrument, face amount | €		€ 1,000,000,000
Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 900,000,000
Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	1.30%	1.30%	1.10%	1.10%
Euro Member Countries, Euro | Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 61,000,000		$ 529,000,000
Japan, Yen | Foreign Currency Denominated Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 367,000,000		308,000,000
Adient [Member]
Debt Instrument [Line Items]
Length of Credit Facility	5 years
Capital lease obligations	$ 24,000,000		$ 48,000,000
Adient [Member] | 4.95% Due in 2064
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	4.875%	4.875%	4.875%	4.875%
Debt instrument, face amount	$ 900,000,000		$ 900,000,000
Adient [Member] | Three Point Five Percent Due Two Thousand Twenty Four [Member]
Debt Instrument [Line Items]
Debt Instrument, Interest Rate, Stated Percentage	3.50%	3.50%	3.50%	3.50%
Debt instrument, face amount | €		€ 1,000,000,000		€ 1,000,000,000
Long-term Debt	$ 1,119,000,000		$ 0
Adient [Member] | Four Point Eight Seven Five Percent Due Two Thousand Twenty Six [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 900,000,000		$ 0
Adient [Member] | LIBOR plus One Point Zero Zero Five Percent Due Two Thousand Twenty One [Member]
Debt Instrument [Line Items]
Length of Credit Facility	5 years
Debt Instrument, Interest Rate, Stated Percentage	1.005%	1.005%	1.005%	1.005%
Long-term Debt	$ 1,500,000,000		$ 0