Consolidated Statement of Comprehensive Income (Parenthetical) (Parentheticals) (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Foreign currency translation, net of tax (provision)/benefit	$ (8)	$ 29	$ (8)	$ 8
Current year actuarial gain (loss), net of tax (provision)/benefit	(5)	(6)	(5)	(16)
Amortization of actuarial (gain) loss, net of tax (provision)/benefit	(44)	(67)	(88)	(134)
Current year prior service credit (cost), net of tax (provision)/benefit	0	0	0	0
Amortization of prior service (credit) cost, net of tax (provision)/benefit	4	4	7	9
Amortization of transition (asset) obligation, net of tax (provision)/benefit	0	0	0	0
Derivative financial instruments, Gains (losses) deferred, net of tax (provision)/benefit	6	(5)	16	13
Derivative financial instruments, (Gains) losses reclassified to earnings, net of tax (provision)/benefit	3	(12)	6	(19)
Available-for-sale securities, Gains (losses) deferred, net of tax (provision)/benefit	(8)	6	(11)	(2)
Available-for-sale securities, (Gains) losses reclassified to earnings, net of tax (provision)/benefit	$ 0	$ 0	$ 4	$ 0