Business Acquisitions (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended								12 Months Ended			6 Months Ended
	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2014	Mar. 31, 2014	Dec. 31, 2013	Sep. 30, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2014	Nov. 01, 2013	Jul. 01, 2014	Aug. 01, 2014	Sep. 01, 2014
Sales	$ 2,039	$ 1,970	$ 1,782	$ 1,718	$ 1,691	$ 1,484	$ 1,610	$ 1,586	$ 7,509	$ 6,371	$ 5,715
Gross margin	233	192	194	179	190	135	163	150	798	638	537
Business Acquisition, Pro Forma Revenue									8,205	7,675
Business Acquisitions Pro Forma Gross Margin									866	780
Business Acquisitions, Pro Forma, Income From Continuing Operations Before Income Taxes									275	930
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents													(96)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables													75
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory													42
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment													42
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable													106
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net													293
Electronics business of Johnson Controls [Member]
Business Acquisition, Effective Date of Acquisition									Jul. 01, 2014
Business Combination, Consideration Transferred									297
Sales												665
Gross margin												103
Business Combination, Acquisition Related Costs									10
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Cash and Equivalents														(31)
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Net														266
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Assets, Receivables														210
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Inventory														100
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment														137
Business combination, recognized identifiable assets acquired and liabilities assumed, contractually reimbursable engineering costs														77
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill														16
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Assets														24
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets														564
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Current Liabilities, Accounts Payable														176
Business combination, recognized identifiable assets acquired and liabilities assumed, other liabilities not separately disclosed														81
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities														257
Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value														41
Automotive thermal and emissions business of Cooper-Standard Automotive [Member]
Business Combination, Consideration Transferred									46
Business Combination, Acquisition Related Costs									1
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Property, Plant, and Equipment															30
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Intangible Assets, Other than Goodwill															8
Business Acquisition, Revenue Reported by Acquired Entity for Last Annual Period										66
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net															8
Japan Climate Systems - Nanjing [Member]
Business Combination, Consideration Transferred									7
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net																$ 2
Business Acquisition, Percentage of Voting Interests Acquired																51.00%