Benefit Obligations (Schedule of Pension Benefits Expected to be Paid from the Plans or From the Company's Assets) (Details) (USD $) In Millions, unless otherwise specified	Dec. 31, 2013
Pension Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	$ 231	[1]
2015	232	[1]
2016	232	[1]
2017	234	[1]
2018	236	[1]
2019-2023	1,212	[1]
Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	68	[2],[3]
2015	5	[2]
2016	5	[2]
2017	6	[2]
2018	6	[2]
2019-2023	27	[2]
2014	2
2015	0
2016	0
2017	0
2018	0
2019-2023	0
UNITED STATES | Postretirement Benefits [Member]
Defined Benefit Plan Disclosure [Line Items]
2014	$ 49

[1] Payments are expected to be made primarily from plan assets.

[2] Payments are expected to be made primarily from Company assets.

[3] Includes $49 million of expected lump-sum buyout payments to US non-union individuals in connection with the elimination of US postretirement health care benefits.