Goodwill and Other Intangible Assets (Details 2) $ / shares in Units, $ in Millions		3 Months Ended			5 Months Ended	9 Months Ended
	May 01, 2017	Sep. 30, 2017 USD ($) $ / shares	Jun. 30, 2017 USD ($)	Sep. 30, 2016 USD ($)	Sep. 30, 2017 USD ($) segment	Sep. 30, 2017 USD ($) segment $ / shares	Sep. 30, 2016 USD ($)	Dec. 31, 2016 USD ($)
Intangible assets with finite lives
Gross Carrying Amount		$ 3,529			$ 3,529	$ 3,529		$ 3,397
Accumulated Amortization and Impairment		2,188			2,188	2,188		1,507
Net Carrying Amount		1,341			$ 1,341	$ 1,341		1,890
Number of segments | segment					1	1
Brand transition period	3 years
Amortization and impairment of intangible assets		101		$ 42		$ 604	$ 117
Estimated amortization for intangible assets
Remainder of 2017		117			$ 117	117
2018		376			376	376
2019		357			357	357
2020		196			196	196
2021		89			89	89
Thereafter		206			206	206
Total		1,341			1,341	1,341
Customer related and contract based
Intangible assets with finite lives
Gross Carrying Amount		2,104			2,104	2,104		2,023
Accumulated Amortization and Impairment		1,380			1,380	1,380		1,198
Net Carrying Amount		724			724	724		825
Tradenames
Intangible assets with finite lives
Gross Carrying Amount		1,041			1,041	1,041		1,027
Accumulated Amortization and Impairment		478			478	478		7
Net Carrying Amount		563			563	563		1,020
Finite-lived intangible asset, useful life	3 years
Technology and other
Intangible assets with finite lives
Gross Carrying Amount		384			384	384		347
Accumulated Amortization and Impairment		330			330	330		302
Net Carrying Amount		54			$ 54	54		45
Gross intangible assets reclassified								29
Accumulated amortization reclassified								$ 7
Discontinued Operations, Disposed of by Sale | Tempo Business | Tradenames
Intangible assets with finite lives
Impairment of tradename			$ 380			380
Indefinite-lived intangible assets, additional amortization expense		$ 34				$ 56
Additional amortization per share (in dollars per share) | $ / shares		$ 0.13				$ 0.21