Note 13 - Accumulated Other Comprehensive Income (Loss) (Details) - Reclassifications out of Accumulated Other Comprehensive Income (USD $) In Millions, unless otherwise specified	3 Months Ended		6 Months Ended		3 Months Ended		6 Months Ended		3 Months Ended	6 Months Ended	3 Months Ended	6 Months Ended
	Jun. 30, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member] Successor [Member]		Jun. 30, 2014 Reclassification out of Accumulated Other Comprehensive Income [Member] Successor [Member]		Jun. 30, 2013 Reclassification out of Accumulated Other Comprehensive Income [Member] Predecessor [Member]		Jun. 30, 2013 Reclassification out of Accumulated Other Comprehensive Income [Member] Predecessor [Member]		Jun. 30, 2014 Successor [Member]	Jun. 30, 2014 Successor [Member]	Jun. 30, 2013 Predecessor [Member]	Jun. 30, 2013 Predecessor [Member]
Pension and other postretirement benefit obligation changes:
Amortization of prior-service credit	$ 0	[1]	$ 0	[1]	$ (29)	[1]	$ (56)	[1]
Amortization of actuarial losses	0	[1]	0	[1]	73	[1]	144	[1]
Recognition of losses due to settlements	0	[1]	0	[1]	14	[1]	17	[1]
	0		0		58		105
	0		0		12		19		1	1	23	30
Reclassifications for the period	$ 0		$ 0		$ 46		$ 86

[1] See Note 10, "Retirement Plans and Other Postretirement Benefits," regarding the pensions and other postretirement plan obligation changes.