Income Taxes (Tables)

9 Months Ended

Sep. 30, 2015

Income Tax Disclosure [Abstract]

Unrecognized tax benefits

UNRECOGNIZED TAX BENEFITS
(In millions)	September 30, 2015		December 31, 2014
Unrecognized tax benefits	$	2,957	$	3,055
Portion that, if recognized, would reduce tax expense and effective tax rate(a)		2,215		2,259
Accrued interest on unrecognized tax benefits		359		420
Accrued penalties on unrecognized tax benefits		35		34
Reasonably possible reduction to the balance of unrecognized tax benefits
in succeeding 12 months		0-750		0-600
Portion that, if recognized, would reduce tax expense and effective tax rate(a)		0-200		0-50

(a)Some portion of such reduction may be reported as discontinued operations.