Recent Accounting Pronouncements Recent Accounting Pronouncements (Details) - USD ($)	3 Months Ended		8 Months Ended		12 Months Ended
	Sep. 09, 2017	Sep. 03, 2016	Sep. 09, 2017	Sep. 03, 2016	Dec. 31, 2016
Recently Issued Accounting Pronouncement [Line Items]
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation				$ 86,000,000
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets					$ 639,000,000
Income Statement Location [Member]
Recently Issued Accounting Pronouncement [Line Items]
Adjustments to Additional Paid in Capital, Income Tax Benefit from Share-based Compensation	$ 22,000,000	$ 30,000,000	$ 93,000,000	86,000,000
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	69,000,000	$ 0.02	210,000,000	0.05	$ 19,000,000
Earnings per Share [Member]
Recently Issued Accounting Pronouncement [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification	$ 0.01		0.06
Cash Flow Statement Location [Member]
Recently Issued Accounting Pronouncement [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Effect of Adoption, Quantification			$ 257,000,000	$ 229,000,000